Home / 385,113.34-577,683.20-132,391.68

Finding the Fourth Proportional to 385,113.34, 577,683.20 and 132,391.68

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Solution

The fourth proportional to 385,113.34, 577,683.20 and 132,391.68 is: 198,592.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,113.34 : 577,683.20 = 132,391.68 : x
  2. Step 2: Convert to fraction form
    385,113.34/577,683.20 = 132,391.68/x
  3. Step 3: Cross multiply
    385,113.34x = 577,683.20 × 132,391.68
  4. Step 4: Simplify right side
    385,113.34x = 76,480,449,355.78
  5. Step 5: Solve for x
    x = 76,480,449,355.78/385,113.34
  6. Step 6: Final answer
    x = 198,592.05

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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.