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Finding the Fourth Proportional to 488,411.40, 732,617.10 and 222,690.90

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Solution

The fourth proportional to 488,411.40, 732,617.10 and 222,690.90 is: 334,036.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,411.40 : 732,617.10 = 222,690.90 : x
  2. Step 2: Convert to fraction form
    488,411.40/732,617.10 = 222,690.90/x
  3. Step 3: Cross multiply
    488,411.40x = 732,617.10 × 222,690.90
  4. Step 4: Simplify right side
    488,411.40x = 163,147,161,354.39
  5. Step 5: Solve for x
    x = 163,147,161,354.39/488,411.40
  6. Step 6: Final answer
    x = 334,036.35

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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.