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Finding the Fourth Proportional to 534,036.78, 736,971.86 and 292,334.79

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Solution

The fourth proportional to 534,036.78, 736,971.86 and 292,334.79 is: 403,422.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,036.78 : 736,971.86 = 292,334.79 : x
  2. Step 2: Convert to fraction form
    534,036.78/736,971.86 = 292,334.79/x
  3. Step 3: Cross multiply
    534,036.78x = 736,971.86 × 292,334.79
  4. Step 4: Simplify right side
    534,036.78x = 215,442,513,929.01
  5. Step 5: Solve for x
    x = 215,442,513,929.01/534,036.78
  6. Step 6: Final answer
    x = 403,422.61

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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.