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Finding the Fourth Proportional to 663,014.60, 994,521.90 and 476,390.60

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Solution

The fourth proportional to 663,014.60, 994,521.90 and 476,390.60 is: 714,585.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,014.60 : 994,521.90 = 476,390.60 : x
  2. Step 2: Convert to fraction form
    663,014.60/994,521.90 = 476,390.60/x
  3. Step 3: Cross multiply
    663,014.60x = 994,521.90 × 476,390.60
  4. Step 4: Simplify right side
    663,014.60x = 473,780,884,654.14
  5. Step 5: Solve for x
    x = 473,780,884,654.14/663,014.60
  6. Step 6: Final answer
    x = 714,585.90

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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.