Home / 421,823.56-582,116.52-230,836.96

Finding the Fourth Proportional to 421,823.56, 582,116.52 and 230,836.96

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Solution

The fourth proportional to 421,823.56, 582,116.52 and 230,836.96 is: 318,555.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,823.56 : 582,116.52 = 230,836.96 : x
  2. Step 2: Convert to fraction form
    421,823.56/582,116.52 = 230,836.96/x
  3. Step 3: Cross multiply
    421,823.56x = 582,116.52 × 230,836.96
  4. Step 4: Simplify right side
    421,823.56x = 134,374,007,842.58
  5. Step 5: Solve for x
    x = 134,374,007,842.58/421,823.56
  6. Step 6: Final answer
    x = 318,555.01

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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.