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Finding the Fourth Proportional to 381,812.01, 526,901.81 and 212,046.14

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Solution

The fourth proportional to 381,812.01, 526,901.81 and 212,046.14 is: 292,624.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,812.01 : 526,901.81 = 212,046.14 : x
  2. Step 2: Convert to fraction form
    381,812.01/526,901.81 = 212,046.14/x
  3. Step 3: Cross multiply
    381,812.01x = 526,901.81 × 212,046.14
  4. Step 4: Simplify right side
    381,812.01x = 111,727,494,969.51
  5. Step 5: Solve for x
    x = 111,727,494,969.51/381,812.01
  6. Step 6: Final answer
    x = 292,624.36

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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.