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Finding the Fourth Proportional to 482,125.59, 665,339.33 and 278,218.83

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Solution

The fourth proportional to 482,125.59, 665,339.33 and 278,218.83 is: 383,945.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,125.59 : 665,339.33 = 278,218.83 : x
  2. Step 2: Convert to fraction form
    482,125.59/665,339.33 = 278,218.83/x
  3. Step 3: Cross multiply
    482,125.59x = 665,339.33 × 278,218.83
  4. Step 4: Simplify right side
    482,125.59x = 185,109,929,945.58
  5. Step 5: Solve for x
    x = 185,109,929,945.58/482,125.59
  6. Step 6: Final answer
    x = 383,945.46

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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.