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Finding the Fourth Proportional to 585,324.72, 807,748.20 and 317,052.72

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Solution

The fourth proportional to 585,324.72, 807,748.20 and 317,052.72 is: 437,532.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,324.72 : 807,748.20 = 317,052.72 : x
  2. Step 2: Convert to fraction form
    585,324.72/807,748.20 = 317,052.72/x
  3. Step 3: Cross multiply
    585,324.72x = 807,748.20 × 317,052.72
  4. Step 4: Simplify right side
    585,324.72x = 256,098,763,885.10
  5. Step 5: Solve for x
    x = 256,098,763,885.10/585,324.72
  6. Step 6: Final answer
    x = 437,532.80

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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.