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Finding the Fourth Proportional to 585,744.15, 877,613.23 and 319,691.35

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Solution

The fourth proportional to 585,744.15, 877,613.23 and 319,691.35 is: 478,989.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,744.15 : 877,613.23 = 319,691.35 : x
  2. Step 2: Convert to fraction form
    585,744.15/877,613.23 = 319,691.35/x
  3. Step 3: Cross multiply
    585,744.15x = 877,613.23 × 319,691.35
  4. Step 4: Simplify right side
    585,744.15x = 280,565,358,276.56
  5. Step 5: Solve for x
    x = 280,565,358,276.56/585,744.15
  6. Step 6: Final answer
    x = 478,989.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.