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Finding the Fourth Proportional to 588,897.70, 883,346.55 and 389,443.30

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Solution

The fourth proportional to 588,897.70, 883,346.55 and 389,443.30 is: 584,164.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    588,897.70 : 883,346.55 = 389,443.30 : x
  2. Step 2: Convert to fraction form
    588,897.70/883,346.55 = 389,443.30/x
  3. Step 3: Cross multiply
    588,897.70x = 883,346.55 × 389,443.30
  4. Step 4: Simplify right side
    588,897.70x = 344,013,395,475.62
  5. Step 5: Solve for x
    x = 344,013,395,475.62/588,897.70
  6. Step 6: Final answer
    x = 584,164.95

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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.