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Finding the Fourth Proportional to 331,473.70, 497,210.55 and 191,116.90

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Solution

The fourth proportional to 331,473.70, 497,210.55 and 191,116.90 is: 286,675.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,473.70 : 497,210.55 = 191,116.90 : x
  2. Step 2: Convert to fraction form
    331,473.70/497,210.55 = 191,116.90/x
  3. Step 3: Cross multiply
    331,473.70x = 497,210.55 × 191,116.90
  4. Step 4: Simplify right side
    331,473.70x = 95,025,338,963.30
  5. Step 5: Solve for x
    x = 95,025,338,963.30/331,473.70
  6. Step 6: Final answer
    x = 286,675.35

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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.