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Finding the Fourth Proportional to 296,428.80, 444,700.80 and 127,948.80

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Solution

The fourth proportional to 296,428.80, 444,700.80 and 127,948.80 is: 191,948.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,428.80 : 444,700.80 = 127,948.80 : x
  2. Step 2: Convert to fraction form
    296,428.80/444,700.80 = 127,948.80/x
  3. Step 3: Cross multiply
    296,428.80x = 444,700.80 × 127,948.80
  4. Step 4: Simplify right side
    296,428.80x = 56,898,933,719.04
  5. Step 5: Solve for x
    x = 56,898,933,719.04/296,428.80
  6. Step 6: Final answer
    x = 191,948.06

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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.