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Finding the Fourth Proportional to 358,572.86, 538,777.29 and 270,654.38

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Solution

The fourth proportional to 358,572.86, 538,777.29 and 270,654.38 is: 406,674.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,572.86 : 538,777.29 = 270,654.38 : x
  2. Step 2: Convert to fraction form
    358,572.86/538,777.29 = 270,654.38/x
  3. Step 3: Cross multiply
    358,572.86x = 538,777.29 × 270,654.38
  4. Step 4: Simplify right side
    358,572.86x = 145,822,430,689.14
  5. Step 5: Solve for x
    x = 145,822,430,689.14/358,572.86
  6. Step 6: Final answer
    x = 406,674.48

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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.