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Finding the Fourth Proportional to 503,722.80, 755,584.20 and 474,854.40

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Solution

The fourth proportional to 503,722.80, 755,584.20 and 474,854.40 is: 712,281.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,722.80 : 755,584.20 = 474,854.40 : x
  2. Step 2: Convert to fraction form
    503,722.80/755,584.20 = 474,854.40/x
  3. Step 3: Cross multiply
    503,722.80x = 755,584.20 × 474,854.40
  4. Step 4: Simplify right side
    503,722.80x = 358,792,481,940.48
  5. Step 5: Solve for x
    x = 358,792,481,940.48/503,722.80
  6. Step 6: Final answer
    x = 712,281.60

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Similar ratio
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1.5x scale

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.