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Finding the Fourth Proportional to 663,218.20, 994,827.30 and 463,763.80

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Solution

The fourth proportional to 663,218.20, 994,827.30 and 463,763.80 is: 695,645.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,218.20 : 994,827.30 = 463,763.80 : x
  2. Step 2: Convert to fraction form
    663,218.20/994,827.30 = 463,763.80/x
  3. Step 3: Cross multiply
    663,218.20x = 994,827.30 × 463,763.80
  4. Step 4: Simplify right side
    663,218.20x = 461,364,888,991.74
  5. Step 5: Solve for x
    x = 461,364,888,991.74/663,218.20
  6. Step 6: Final answer
    x = 695,645.70

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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.