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Finding the Fourth Proportional to 531,125.91, 732,956.85 and 316,275.03

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Solution

The fourth proportional to 531,125.91, 732,956.85 and 316,275.03 is: 436,461.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,125.91 : 732,956.85 = 316,275.03 : x
  2. Step 2: Convert to fraction form
    531,125.91/732,956.85 = 316,275.03/x
  3. Step 3: Cross multiply
    531,125.91x = 732,956.85 × 316,275.03
  4. Step 4: Simplify right side
    531,125.91x = 231,815,949,722.46
  5. Step 5: Solve for x
    x = 231,815,949,722.46/531,125.91
  6. Step 6: Final answer
    x = 436,461.38

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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.