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Finding the Fourth Proportional to 463,424.76, 639,377.55 and 259,445.70

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Solution

The fourth proportional to 463,424.76, 639,377.55 and 259,445.70 is: 357,951.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,424.76 : 639,377.55 = 259,445.70 : x
  2. Step 2: Convert to fraction form
    463,424.76/639,377.55 = 259,445.70/x
  3. Step 3: Cross multiply
    463,424.76x = 639,377.55 × 259,445.70
  4. Step 4: Simplify right side
    463,424.76x = 165,883,756,024.04
  5. Step 5: Solve for x
    x = 165,883,756,024.04/463,424.76
  6. Step 6: Final answer
    x = 357,951.86

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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.