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Finding the Fourth Proportional to 748,658.80, 1,033,265.64 and 476,843.20

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Solution

The fourth proportional to 748,658.80, 1,033,265.64 and 476,843.20 is: 658,117.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,658.80 : 1,033,265.64 = 476,843.20 : x
  2. Step 2: Convert to fraction form
    748,658.80/1,033,265.64 = 476,843.20/x
  3. Step 3: Cross multiply
    748,658.80x = 1,033,265.64 × 476,843.20
  4. Step 4: Simplify right side
    748,658.80x = 492,705,694,227.65
  5. Step 5: Solve for x
    x = 492,705,694,227.65/748,658.80
  6. Step 6: Final answer
    x = 658,117.82

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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.