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Finding the Fourth Proportional to 585,126.72, 807,470.20 and 316,854.72

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Solution

The fourth proportional to 585,126.72, 807,470.20 and 316,854.72 is: 437,256.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,126.72 : 807,470.20 = 316,854.72 : x
  2. Step 2: Convert to fraction form
    585,126.72/807,470.20 = 316,854.72/x
  3. Step 3: Cross multiply
    585,126.72x = 807,470.20 × 316,854.72
  4. Step 4: Simplify right side
    585,126.72x = 255,850,744,129.34
  5. Step 5: Solve for x
    x = 255,850,744,129.34/585,126.72
  6. Step 6: Final answer
    x = 437,256.98

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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.