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Finding the Fourth Proportional to 296,505.62, 444,783.15 and 86,143.58

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Solution

The fourth proportional to 296,505.62, 444,783.15 and 86,143.58 is: 129,222.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,505.62 : 444,783.15 = 86,143.58 : x
  2. Step 2: Convert to fraction form
    296,505.62/444,783.15 = 86,143.58/x
  3. Step 3: Cross multiply
    296,505.62x = 444,783.15 × 86,143.58
  4. Step 4: Simplify right side
    296,505.62x = 38,315,212,864.68
  5. Step 5: Solve for x
    x = 38,315,212,864.68/296,505.62
  6. Step 6: Final answer
    x = 129,222.55

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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.