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Finding the Fourth Proportional to 381,828.22, 526,892.11 and 220,693.71

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Solution

The fourth proportional to 381,828.22, 526,892.11 and 220,693.71 is: 304,539.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,828.22 : 526,892.11 = 220,693.71 : x
  2. Step 2: Convert to fraction form
    381,828.22/526,892.11 = 220,693.71/x
  3. Step 3: Cross multiply
    381,828.22x = 526,892.11 × 220,693.71
  4. Step 4: Simplify right side
    381,828.22x = 116,281,774,525.63
  5. Step 5: Solve for x
    x = 116,281,774,525.63/381,828.22
  6. Step 6: Final answer
    x = 304,539.50

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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.