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Finding the Fourth Proportional to 575,116.60, 862,674.90 and 486,543.10

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Solution

The fourth proportional to 575,116.60, 862,674.90 and 486,543.10 is: 729,814.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,116.60 : 862,674.90 = 486,543.10 : x
  2. Step 2: Convert to fraction form
    575,116.60/862,674.90 = 486,543.10/x
  3. Step 3: Cross multiply
    575,116.60x = 862,674.90 × 486,543.10
  4. Step 4: Simplify right side
    575,116.60x = 419,728,520,138.19
  5. Step 5: Solve for x
    x = 419,728,520,138.19/575,116.60
  6. Step 6: Final answer
    x = 729,814.65

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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.