Home / 913,925,431.63-1,261,217,095.64-522,784,855.63

Finding the Fourth Proportional to 913,925,431.63, 1,261,217,095.64 and 522,784,855.63

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Solution

The fourth proportional to 913,925,431.63, 1,261,217,095.64 and 522,784,855.63 is: 721,443,100.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,925,431.63 : 1,261,217,095.64 = 522,784,855.63 : x
  2. Step 2: Convert to fraction form
    913,925,431.63/1,261,217,095.64 = 522,784,855.63/x
  3. Step 3: Cross multiply
    913,925,431.63x = 1,261,217,095.64 × 522,784,855.63
  4. Step 4: Simplify right side
    913,925,431.63x = 659,345,197,262,245,376
  5. Step 5: Solve for x
    x = 659,345,197,262,245,376/913,925,431.63
  6. Step 6: Final answer
    x = 721,443,100.76

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.