Home / 418,146.30-577,516.19-281,945.39

Finding the Fourth Proportional to 418,146.30, 577,516.19 and 281,945.39

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Solution

The fourth proportional to 418,146.30, 577,516.19 and 281,945.39 is: 389,404.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,146.30 : 577,516.19 = 281,945.39 : x
  2. Step 2: Convert to fraction form
    418,146.30/577,516.19 = 281,945.39/x
  3. Step 3: Cross multiply
    418,146.30x = 577,516.19 × 281,945.39
  4. Step 4: Simplify right side
    418,146.30x = 162,828,023,123.56
  5. Step 5: Solve for x
    x = 162,828,023,123.56/418,146.30
  6. Step 6: Final answer
    x = 389,404.43

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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.