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Finding the Fourth Proportional to 714,697.66, 986,279.90 and 408,773.60

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Solution

The fourth proportional to 714,697.66, 986,279.90 and 408,773.60 is: 564,105.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,697.66 : 986,279.90 = 408,773.60 : x
  2. Step 2: Convert to fraction form
    714,697.66/986,279.90 = 408,773.60/x
  3. Step 3: Cross multiply
    714,697.66x = 986,279.90 × 408,773.60
  4. Step 4: Simplify right side
    714,697.66x = 403,165,188,818.27
  5. Step 5: Solve for x
    x = 403,165,188,818.27/714,697.66
  6. Step 6: Final answer
    x = 564,105.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.