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Finding the Fourth Proportional to 364,645.29, 547,212.56 and 127,988.67

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Solution

The fourth proportional to 364,645.29, 547,212.56 and 127,988.67 is: 192,068.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,645.29 : 547,212.56 = 127,988.67 : x
  2. Step 2: Convert to fraction form
    364,645.29/547,212.56 = 127,988.67/x
  3. Step 3: Cross multiply
    364,645.29x = 547,212.56 × 127,988.67
  4. Step 4: Simplify right side
    364,645.29x = 70,037,007,121.75
  5. Step 5: Solve for x
    x = 70,037,007,121.75/364,645.29
  6. Step 6: Final answer
    x = 192,068.87

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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.