Home / 385,243.23-577,721.16-132,452.15

Finding the Fourth Proportional to 385,243.23, 577,721.16 and 132,452.15

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Solution

The fourth proportional to 385,243.23, 577,721.16 and 132,452.15 is: 198,628.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,243.23 : 577,721.16 = 132,452.15 : x
  2. Step 2: Convert to fraction form
    385,243.23/577,721.16 = 132,452.15/x
  3. Step 3: Cross multiply
    385,243.23x = 577,721.16 × 132,452.15
  4. Step 4: Simplify right side
    385,243.23x = 76,520,406,853.89
  5. Step 5: Solve for x
    x = 76,520,406,853.89/385,243.23
  6. Step 6: Final answer
    x = 198,628.82

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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.