Home / 399,084.30-598,626.45-189,132.30

Finding the Fourth Proportional to 399,084.30, 598,626.45 and 189,132.30

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Solution

The fourth proportional to 399,084.30, 598,626.45 and 189,132.30 is: 283,698.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,084.30 : 598,626.45 = 189,132.30 : x
  2. Step 2: Convert to fraction form
    399,084.30/598,626.45 = 189,132.30/x
  3. Step 3: Cross multiply
    399,084.30x = 598,626.45 × 189,132.30
  4. Step 4: Simplify right side
    399,084.30x = 113,219,597,329.34
  5. Step 5: Solve for x
    x = 113,219,597,329.34/399,084.30
  6. Step 6: Final answer
    x = 283,698.45

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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.