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Finding the Fourth Proportional to 802,253.10, 1,203,379.65 and 623,793.90

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Solution

The fourth proportional to 802,253.10, 1,203,379.65 and 623,793.90 is: 935,690.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,253.10 : 1,203,379.65 = 623,793.90 : x
  2. Step 2: Convert to fraction form
    802,253.10/1,203,379.65 = 623,793.90/x
  3. Step 3: Cross multiply
    802,253.10x = 1,203,379.65 × 623,793.90
  4. Step 4: Simplify right side
    802,253.10x = 750,660,885,054.14
  5. Step 5: Solve for x
    x = 750,660,885,054.14/802,253.10
  6. Step 6: Final answer
    x = 935,690.85

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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.