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Finding the Fourth Proportional to 423,018.24, 583,754.88 and 272,114.88

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Solution

The fourth proportional to 423,018.24, 583,754.88 and 272,114.88 is: 375,511.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,018.24 : 583,754.88 = 272,114.88 : x
  2. Step 2: Convert to fraction form
    423,018.24/583,754.88 = 272,114.88/x
  3. Step 3: Cross multiply
    423,018.24x = 583,754.88 × 272,114.88
  4. Step 4: Simplify right side
    423,018.24x = 158,848,389,120.61
  5. Step 5: Solve for x
    x = 158,848,389,120.61/423,018.24
  6. Step 6: Final answer
    x = 375,511.91

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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.