Home / 386,839.92-533,708.28-251,043.96

Finding the Fourth Proportional to 386,839.92, 533,708.28 and 251,043.96

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Solution

The fourth proportional to 386,839.92, 533,708.28 and 251,043.96 is: 346,355.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,839.92 : 533,708.28 = 251,043.96 : x
  2. Step 2: Convert to fraction form
    386,839.92/533,708.28 = 251,043.96/x
  3. Step 3: Cross multiply
    386,839.92x = 533,708.28 × 251,043.96
  4. Step 4: Simplify right side
    386,839.92x = 133,984,240,095.99
  5. Step 5: Solve for x
    x = 133,984,240,095.99/386,839.92
  6. Step 6: Final answer
    x = 346,355.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.