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Finding the Fourth Proportional to 531,078.68, 732,553.80 and 316,058.24

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Solution

The fourth proportional to 531,078.68, 732,553.80 and 316,058.24 is: 435,961.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,078.68 : 732,553.80 = 316,058.24 : x
  2. Step 2: Convert to fraction form
    531,078.68/732,553.80 = 316,058.24/x
  3. Step 3: Cross multiply
    531,078.68x = 732,553.80 × 316,058.24
  4. Step 4: Simplify right side
    531,078.68x = 231,529,664,733.31
  5. Step 5: Solve for x
    x = 231,529,664,733.31/531,078.68
  6. Step 6: Final answer
    x = 435,961.14

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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.