Home / 905,137.45-1,248,950.96-523,090.51

Finding the Fourth Proportional to 905,137.45, 1,248,950.96 and 523,090.51

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Solution

The fourth proportional to 905,137.45, 1,248,950.96 and 523,090.51 is: 721,784.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,137.45 : 1,248,950.96 = 523,090.51 : x
  2. Step 2: Convert to fraction form
    905,137.45/1,248,950.96 = 523,090.51/x
  3. Step 3: Cross multiply
    905,137.45x = 1,248,950.96 × 523,090.51
  4. Step 4: Simplify right side
    905,137.45x = 653,314,394,631.39
  5. Step 5: Solve for x
    x = 653,314,394,631.39/905,137.45
  6. Step 6: Final answer
    x = 721,784.74

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Double scale
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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.