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Finding the Fourth Proportional to 663,902.20, 995,853.30 and 453,950.20

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Solution

The fourth proportional to 663,902.20, 995,853.30 and 453,950.20 is: 680,925.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,902.20 : 995,853.30 = 453,950.20 : x
  2. Step 2: Convert to fraction form
    663,902.20/995,853.30 = 453,950.20/x
  3. Step 3: Cross multiply
    663,902.20x = 995,853.30 × 453,950.20
  4. Step 4: Simplify right side
    663,902.20x = 452,067,804,705.66
  5. Step 5: Solve for x
    x = 452,067,804,705.66/663,902.20
  6. Step 6: Final answer
    x = 680,925.30

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Half scale
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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.