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Finding the Fourth Proportional to 612,219.32, 918,338.33 and 233,161.12

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Solution

The fourth proportional to 612,219.32, 918,338.33 and 233,161.12 is: 349,745.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,219.32 : 918,338.33 = 233,161.12 : x
  2. Step 2: Convert to fraction form
    612,219.32/918,338.33 = 233,161.12/x
  3. Step 3: Cross multiply
    612,219.32x = 918,338.33 × 233,161.12
  4. Step 4: Simplify right side
    612,219.32x = 214,120,793,561.73
  5. Step 5: Solve for x
    x = 214,120,793,561.73/612,219.32
  6. Step 6: Final answer
    x = 349,745.24

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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.