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Finding the Fourth Proportional to 323,444.14, 485,259.76 and 133,869.46

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Solution

The fourth proportional to 323,444.14, 485,259.76 and 133,869.46 is: 200,842.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,444.14 : 485,259.76 = 133,869.46 : x
  2. Step 2: Convert to fraction form
    323,444.14/485,259.76 = 133,869.46/x
  3. Step 3: Cross multiply
    323,444.14x = 485,259.76 × 133,869.46
  4. Step 4: Simplify right side
    323,444.14x = 64,961,462,030.93
  5. Step 5: Solve for x
    x = 64,961,462,030.93/323,444.14
  6. Step 6: Final answer
    x = 200,842.91

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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.