Home / 385,543.40-532,049.82-215,777.53

Finding the Fourth Proportional to 385,543.40, 532,049.82 and 215,777.53

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Solution

The fourth proportional to 385,543.40, 532,049.82 and 215,777.53 is: 297,772.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,543.40 : 532,049.82 = 215,777.53 : x
  2. Step 2: Convert to fraction form
    385,543.40/532,049.82 = 215,777.53/x
  3. Step 3: Cross multiply
    385,543.40x = 532,049.82 × 215,777.53
  4. Step 4: Simplify right side
    385,543.40x = 114,804,395,996.55
  5. Step 5: Solve for x
    x = 114,804,395,996.55/385,543.40
  6. Step 6: Final answer
    x = 297,772.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.