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Finding the Fourth Proportional to 531,084.68, 732,561.96 and 316,064.24

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Solution

The fourth proportional to 531,084.68, 732,561.96 and 316,064.24 is: 435,969.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,084.68 : 732,561.96 = 316,064.24 : x
  2. Step 2: Convert to fraction form
    531,084.68/732,561.96 = 316,064.24/x
  3. Step 3: Cross multiply
    531,084.68x = 732,561.96 × 316,064.24
  4. Step 4: Simplify right side
    531,084.68x = 231,536,639,140.31
  5. Step 5: Solve for x
    x = 231,536,639,140.31/531,084.68
  6. Step 6: Final answer
    x = 435,969.34

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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.