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Finding the Fourth Proportional to 454,657.92, 627,405.12 and 253,415.04

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Solution

The fourth proportional to 454,657.92, 627,405.12 and 253,415.04 is: 349,700.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,657.92 : 627,405.12 = 253,415.04 : x
  2. Step 2: Convert to fraction form
    454,657.92/627,405.12 = 253,415.04/x
  3. Step 3: Cross multiply
    454,657.92x = 627,405.12 × 253,415.04
  4. Step 4: Simplify right side
    454,657.92x = 158,993,893,581.01
  5. Step 5: Solve for x
    x = 158,993,893,581.01/454,657.92
  6. Step 6: Final answer
    x = 349,700.04

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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.