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Finding the Fourth Proportional to 496,841.80, 744,387.90 and 407,612.20

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Solution

The fourth proportional to 496,841.80, 744,387.90 and 407,612.20 is: 610,700.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,841.80 : 744,387.90 = 407,612.20 : x
  2. Step 2: Convert to fraction form
    496,841.80/744,387.90 = 407,612.20/x
  3. Step 3: Cross multiply
    496,841.80x = 744,387.90 × 407,612.20
  4. Step 4: Simplify right side
    496,841.80x = 303,421,589,572.38
  5. Step 5: Solve for x
    x = 303,421,589,572.38/496,841.80
  6. Step 6: Final answer
    x = 610,700.61

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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.