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Finding the Fourth Proportional to 619,641.88, 929,507.22 and 259,450.30

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Solution

The fourth proportional to 619,641.88, 929,507.22 and 259,450.30 is: 389,194.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,641.88 : 929,507.22 = 259,450.30 : x
  2. Step 2: Convert to fraction form
    619,641.88/929,507.22 = 259,450.30/x
  3. Step 3: Cross multiply
    619,641.88x = 929,507.22 × 259,450.30
  4. Step 4: Simplify right side
    619,641.88x = 241,160,927,081.17
  5. Step 5: Solve for x
    x = 241,160,927,081.17/619,641.88
  6. Step 6: Final answer
    x = 389,194.04

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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.