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Finding the Fourth Proportional to 487,338.76, 730,898.78 and 234,490.12

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Solution

The fourth proportional to 487,338.76, 730,898.78 and 234,490.12 is: 351,682.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,338.76 : 730,898.78 = 234,490.12 : x
  2. Step 2: Convert to fraction form
    487,338.76/730,898.78 = 234,490.12/x
  3. Step 3: Cross multiply
    487,338.76x = 730,898.78 × 234,490.12
  4. Step 4: Simplify right side
    487,338.76x = 171,388,543,216.28
  5. Step 5: Solve for x
    x = 171,388,543,216.28/487,338.76
  6. Step 6: Final answer
    x = 351,682.56

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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.