Home / 691,505.18-954,288.90-381,443.34

Finding the Fourth Proportional to 691,505.18, 954,288.90 and 381,443.34

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Solution

The fourth proportional to 691,505.18, 954,288.90 and 381,443.34 is: 526,398.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,505.18 : 954,288.90 = 381,443.34 : x
  2. Step 2: Convert to fraction form
    691,505.18/954,288.90 = 381,443.34/x
  3. Step 3: Cross multiply
    691,505.18x = 954,288.90 × 381,443.34
  4. Step 4: Simplify right side
    691,505.18x = 364,007,145,340.93
  5. Step 5: Solve for x
    x = 364,007,145,340.93/691,505.18
  6. Step 6: Final answer
    x = 526,398.29

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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.