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Finding the Fourth Proportional to 292,481.84, 439,344.12 and 275,417.66

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Solution

The fourth proportional to 292,481.84, 439,344.12 and 275,417.66 is: 413,711.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,481.84 : 439,344.12 = 275,417.66 : x
  2. Step 2: Convert to fraction form
    292,481.84/439,344.12 = 275,417.66/x
  3. Step 3: Cross multiply
    292,481.84x = 439,344.12 × 275,417.66
  4. Step 4: Simplify right side
    292,481.84x = 121,003,129,465.16
  5. Step 5: Solve for x
    x = 121,003,129,465.16/292,481.84
  6. Step 6: Final answer
    x = 413,711.60

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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.