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Finding the Fourth Proportional to 537,772.40, 806,658.60 and 411,801.20

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Solution

The fourth proportional to 537,772.40, 806,658.60 and 411,801.20 is: 617,701.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,772.40 : 806,658.60 = 411,801.20 : x
  2. Step 2: Convert to fraction form
    537,772.40/806,658.60 = 411,801.20/x
  3. Step 3: Cross multiply
    537,772.40x = 806,658.60 × 411,801.20
  4. Step 4: Simplify right side
    537,772.40x = 332,182,979,470.32
  5. Step 5: Solve for x
    x = 332,182,979,470.32/537,772.40
  6. Step 6: Final answer
    x = 617,701.80

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Double scale
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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.