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Finding the Fourth Proportional to 527,437.68, 791,145.58 and 128,080.54

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Solution

The fourth proportional to 527,437.68, 791,145.58 and 128,080.54 is: 192,118.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,437.68 : 791,145.58 = 128,080.54 : x
  2. Step 2: Convert to fraction form
    527,437.68/791,145.58 = 128,080.54/x
  3. Step 3: Cross multiply
    527,437.68x = 791,145.58 × 128,080.54
  4. Step 4: Simplify right side
    527,437.68x = 101,330,354,013.90
  5. Step 5: Solve for x
    x = 101,330,354,013.90/527,437.68
  6. Step 6: Final answer
    x = 192,118.16

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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.