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Finding the Fourth Proportional to 579,322.20, 868,983.30 and 555,702.60

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Solution

The fourth proportional to 579,322.20, 868,983.30 and 555,702.60 is: 833,553.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,322.20 : 868,983.30 = 555,702.60 : x
  2. Step 2: Convert to fraction form
    579,322.20/868,983.30 = 555,702.60/x
  3. Step 3: Cross multiply
    579,322.20x = 868,983.30 × 555,702.60
  4. Step 4: Simplify right side
    579,322.20x = 482,896,279,166.58
  5. Step 5: Solve for x
    x = 482,896,279,166.58/579,322.20
  6. Step 6: Final answer
    x = 833,553.90

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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.