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Finding the Fourth Proportional to 372,907.32, 559,144.98 and 254,721.48

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Solution

The fourth proportional to 372,907.32, 559,144.98 and 254,721.48 is: 381,934.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,907.32 : 559,144.98 = 254,721.48 : x
  2. Step 2: Convert to fraction form
    372,907.32/559,144.98 = 254,721.48/x
  3. Step 3: Cross multiply
    372,907.32x = 559,144.98 × 254,721.48
  4. Step 4: Simplify right side
    372,907.32x = 142,426,236,840.17
  5. Step 5: Solve for x
    x = 142,426,236,840.17/372,907.32
  6. Step 6: Final answer
    x = 381,934.68

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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.