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Finding the Fourth Proportional to 426,169.76, 635,761.67 and 414,585.95

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Solution

The fourth proportional to 426,169.76, 635,761.67 and 414,585.95 is: 618,480.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,169.76 : 635,761.67 = 414,585.95 : x
  2. Step 2: Convert to fraction form
    426,169.76/635,761.67 = 414,585.95/x
  3. Step 3: Cross multiply
    426,169.76x = 635,761.67 × 414,585.95
  4. Step 4: Simplify right side
    426,169.76x = 263,577,850,678.80
  5. Step 5: Solve for x
    x = 263,577,850,678.80/426,169.76
  6. Step 6: Final answer
    x = 618,480.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.