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Finding the Fourth Proportional to 418,592.76, 627,889.14 and 123,104.76

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Solution

The fourth proportional to 418,592.76, 627,889.14 and 123,104.76 is: 184,657.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,592.76 : 627,889.14 = 123,104.76 : x
  2. Step 2: Convert to fraction form
    418,592.76/627,889.14 = 123,104.76/x
  3. Step 3: Cross multiply
    418,592.76x = 627,889.14 × 123,104.76
  4. Step 4: Simplify right side
    418,592.76x = 77,296,141,886.31
  5. Step 5: Solve for x
    x = 77,296,141,886.31/418,592.76
  6. Step 6: Final answer
    x = 184,657.14

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Similar ratio
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1.5x scale

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.