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Finding the Fourth Proportional to 472,933.76, 652,657.92 and 371,081.28

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Solution

The fourth proportional to 472,933.76, 652,657.92 and 371,081.28 is: 512,099.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,933.76 : 652,657.92 = 371,081.28 : x
  2. Step 2: Convert to fraction form
    472,933.76/652,657.92 = 371,081.28/x
  3. Step 3: Cross multiply
    472,933.76x = 652,657.92 × 371,081.28
  4. Step 4: Simplify right side
    472,933.76x = 242,189,136,355.74
  5. Step 5: Solve for x
    x = 242,189,136,355.74/472,933.76
  6. Step 6: Final answer
    x = 512,099.49

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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.