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Finding the Fourth Proportional to 276,353.13, 413,671.59 and 149,678.75

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Solution

The fourth proportional to 276,353.13, 413,671.59 and 149,678.75 is: 224,053.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,353.13 : 413,671.59 = 149,678.75 : x
  2. Step 2: Convert to fraction form
    276,353.13/413,671.59 = 149,678.75/x
  3. Step 3: Cross multiply
    276,353.13x = 413,671.59 × 149,678.75
  4. Step 4: Simplify right side
    276,353.13x = 61,917,844,433.35
  5. Step 5: Solve for x
    x = 61,917,844,433.35/276,353.13
  6. Step 6: Final answer
    x = 224,053.35

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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.