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Finding the Fourth Proportional to 292,267.91, 438,555.87 and 207,426.89

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Solution

The fourth proportional to 292,267.91, 438,555.87 and 207,426.89 is: 311,249.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,267.91 : 438,555.87 = 207,426.89 : x
  2. Step 2: Convert to fraction form
    292,267.91/438,555.87 = 207,426.89/x
  3. Step 3: Cross multiply
    292,267.91x = 438,555.87 × 207,426.89
  4. Step 4: Simplify right side
    292,267.91x = 90,968,281,301.73
  5. Step 5: Solve for x
    x = 90,968,281,301.73/292,267.91
  6. Step 6: Final answer
    x = 311,249.64

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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.