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Finding the Fourth Proportional to 619,609.80, 929,414.70 and 595,990.20

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Solution

The fourth proportional to 619,609.80, 929,414.70 and 595,990.20 is: 893,985.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,609.80 : 929,414.70 = 595,990.20 : x
  2. Step 2: Convert to fraction form
    619,609.80/929,414.70 = 595,990.20/x
  3. Step 3: Cross multiply
    619,609.80x = 929,414.70 × 595,990.20
  4. Step 4: Simplify right side
    619,609.80x = 553,922,052,935.94
  5. Step 5: Solve for x
    x = 553,922,052,935.94/619,609.80
  6. Step 6: Final answer
    x = 893,985.30

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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.