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Finding the Fourth Proportional to 373,466.20, 559,616.10 and 313,979.80

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Solution

The fourth proportional to 373,466.20, 559,616.10 and 313,979.80 is: 470,479.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,466.20 : 559,616.10 = 313,979.80 : x
  2. Step 2: Convert to fraction form
    373,466.20/559,616.10 = 313,979.80/x
  3. Step 3: Cross multiply
    373,466.20x = 559,616.10 × 313,979.80
  4. Step 4: Simplify right side
    373,466.20x = 175,708,151,154.78
  5. Step 5: Solve for x
    x = 175,708,151,154.78/373,466.20
  6. Step 6: Final answer
    x = 470,479.39

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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.