Home / 381,815.56-526,874.73-220,681.05

Finding the Fourth Proportional to 381,815.56, 526,874.73 and 220,681.05

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Solution

The fourth proportional to 381,815.56, 526,874.73 and 220,681.05 is: 304,522.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,815.56 : 526,874.73 = 220,681.05 : x
  2. Step 2: Convert to fraction form
    381,815.56/526,874.73 = 220,681.05/x
  3. Step 3: Cross multiply
    381,815.56x = 526,874.73 × 220,681.05
  4. Step 4: Simplify right side
    381,815.56x = 116,271,268,634.87
  5. Step 5: Solve for x
    x = 116,271,268,634.87/381,815.56
  6. Step 6: Final answer
    x = 304,522.08

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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.