Home / 402,432.20-603,729.30-118,122.20

Finding the Fourth Proportional to 402,432.20, 603,729.30 and 118,122.20

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Solution

The fourth proportional to 402,432.20, 603,729.30 and 118,122.20 is: 177,207.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,432.20 : 603,729.30 = 118,122.20 : x
  2. Step 2: Convert to fraction form
    402,432.20/603,729.30 = 118,122.20/x
  3. Step 3: Cross multiply
    402,432.20x = 603,729.30 × 118,122.20
  4. Step 4: Simplify right side
    402,432.20x = 71,313,833,120.46
  5. Step 5: Solve for x
    x = 71,313,833,120.46/402,432.20
  6. Step 6: Final answer
    x = 177,207.08

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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.