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Finding the Fourth Proportional to 473,074.80, 709,612.20 and 449,746.80

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Solution

The fourth proportional to 473,074.80, 709,612.20 and 449,746.80 is: 674,620.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,074.80 : 709,612.20 = 449,746.80 : x
  2. Step 2: Convert to fraction form
    473,074.80/709,612.20 = 449,746.80/x
  3. Step 3: Cross multiply
    473,074.80x = 709,612.20 × 449,746.80
  4. Step 4: Simplify right side
    473,074.80x = 319,145,816,190.96
  5. Step 5: Solve for x
    x = 319,145,816,190.96/473,074.80
  6. Step 6: Final answer
    x = 674,620.20

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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.