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Finding the Fourth Proportional to 482,807.40, 723,750.30 and 376,132.20

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Solution

The fourth proportional to 482,807.40, 723,750.30 and 376,132.20 is: 563,839.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,807.40 : 723,750.30 = 376,132.20 : x
  2. Step 2: Convert to fraction form
    482,807.40/723,750.30 = 376,132.20/x
  3. Step 3: Cross multiply
    482,807.40x = 723,750.30 × 376,132.20
  4. Step 4: Simplify right side
    482,807.40x = 272,225,792,589.66
  5. Step 5: Solve for x
    x = 272,225,792,589.66/482,807.40
  6. Step 6: Final answer
    x = 563,839.31

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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.