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Finding the Fourth Proportional to 374,254.95, 516,471.39 and 202,172.88

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Solution

The fourth proportional to 374,254.95, 516,471.39 and 202,172.88 is: 278,998.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,254.95 : 516,471.39 = 202,172.88 : x
  2. Step 2: Convert to fraction form
    374,254.95/516,471.39 = 202,172.88/x
  3. Step 3: Cross multiply
    374,254.95x = 516,471.39 × 202,172.88
  4. Step 4: Simplify right side
    374,254.95x = 104,416,508,353.90
  5. Step 5: Solve for x
    x = 104,416,508,353.90/374,254.95
  6. Step 6: Final answer
    x = 278,998.34

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1.5x scale

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.