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Finding the Fourth Proportional to 663,065.80, 994,598.70 and 497,177.80

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Solution

The fourth proportional to 663,065.80, 994,598.70 and 497,177.80 is: 745,766.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,065.80 : 994,598.70 = 497,177.80 : x
  2. Step 2: Convert to fraction form
    663,065.80/994,598.70 = 497,177.80/x
  3. Step 3: Cross multiply
    663,065.80x = 994,598.70 × 497,177.80
  4. Step 4: Simplify right side
    663,065.80x = 494,492,393,548.86
  5. Step 5: Solve for x
    x = 494,492,393,548.86/663,065.80
  6. Step 6: Final answer
    x = 745,766.70

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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.