Home / 520,056.10-780,084.15-441,324.10

Finding the Fourth Proportional to 520,056.10, 780,084.15 and 441,324.10

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Solution

The fourth proportional to 520,056.10, 780,084.15 and 441,324.10 is: 661,986.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,056.10 : 780,084.15 = 441,324.10 : x
  2. Step 2: Convert to fraction form
    520,056.10/780,084.15 = 441,324.10/x
  3. Step 3: Cross multiply
    520,056.10x = 780,084.15 × 441,324.10
  4. Step 4: Simplify right side
    520,056.10x = 344,269,935,423.02
  5. Step 5: Solve for x
    x = 344,269,935,423.02/520,056.10
  6. Step 6: Final answer
    x = 661,986.15

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.