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Finding the Fourth Proportional to 568,332.35, 784,305.15 and 313,683.74

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Solution

The fourth proportional to 568,332.35, 784,305.15 and 313,683.74 is: 432,887.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,332.35 : 784,305.15 = 313,683.74 : x
  2. Step 2: Convert to fraction form
    568,332.35/784,305.15 = 313,683.74/x
  3. Step 3: Cross multiply
    568,332.35x = 784,305.15 × 313,683.74
  4. Step 4: Simplify right side
    568,332.35x = 246,023,772,753.26
  5. Step 5: Solve for x
    x = 246,023,772,753.26/568,332.35
  6. Step 6: Final answer
    x = 432,887.15

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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.