Home / 527,436.78-791,144.23-128,079.64

Finding the Fourth Proportional to 527,436.78, 791,144.23 and 128,079.64

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Solution

The fourth proportional to 527,436.78, 791,144.23 and 128,079.64 is: 192,116.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,436.78 : 791,144.23 = 128,079.64 : x
  2. Step 2: Convert to fraction form
    527,436.78/791,144.23 = 128,079.64/x
  3. Step 3: Cross multiply
    527,436.78x = 791,144.23 × 128,079.64
  4. Step 4: Simplify right side
    527,436.78x = 101,329,468,166.48
  5. Step 5: Solve for x
    x = 101,329,468,166.48/527,436.78
  6. Step 6: Final answer
    x = 192,116.80

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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.