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Finding the Fourth Proportional to 331,888.32, 497,365.92 and 144,506.88

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Solution

The fourth proportional to 331,888.32, 497,365.92 and 144,506.88 is: 216,557.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,888.32 : 497,365.92 = 144,506.88 : x
  2. Step 2: Convert to fraction form
    331,888.32/497,365.92 = 144,506.88/x
  3. Step 3: Cross multiply
    331,888.32x = 497,365.92 × 144,506.88
  4. Step 4: Simplify right side
    331,888.32x = 71,872,797,317.53
  5. Step 5: Solve for x
    x = 71,872,797,317.53/331,888.32
  6. Step 6: Final answer
    x = 216,557.18

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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.