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Finding the Fourth Proportional to 522,002.20, 783,003.30 and 362,569.90

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Solution

The fourth proportional to 522,002.20, 783,003.30 and 362,569.90 is: 543,854.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,002.20 : 783,003.30 = 362,569.90 : x
  2. Step 2: Convert to fraction form
    522,002.20/783,003.30 = 362,569.90/x
  3. Step 3: Cross multiply
    522,002.20x = 783,003.30 × 362,569.90
  4. Step 4: Simplify right side
    522,002.20x = 283,893,428,180.67
  5. Step 5: Solve for x
    x = 283,893,428,180.67/522,002.20
  6. Step 6: Final answer
    x = 543,854.85

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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.