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Finding the Fourth Proportional to 351,900.13, 527,738.72 and 127,230.84

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Solution

The fourth proportional to 351,900.13, 527,738.72 and 127,230.84 is: 190,805.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,900.13 : 527,738.72 = 127,230.84 : x
  2. Step 2: Convert to fraction form
    351,900.13/527,738.72 = 127,230.84/x
  3. Step 3: Cross multiply
    351,900.13x = 527,738.72 × 127,230.84
  4. Step 4: Simplify right side
    351,900.13x = 67,144,637,689.35
  5. Step 5: Solve for x
    x = 67,144,637,689.35/351,900.13
  6. Step 6: Final answer
    x = 190,805.95

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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.