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Finding the Fourth Proportional to 260,878.32, 359,825.76 and 239,437.62

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Solution

The fourth proportional to 260,878.32, 359,825.76 and 239,437.62 is: 330,252.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,878.32 : 359,825.76 = 239,437.62 : x
  2. Step 2: Convert to fraction form
    260,878.32/359,825.76 = 239,437.62/x
  3. Step 3: Cross multiply
    260,878.32x = 359,825.76 × 239,437.62
  4. Step 4: Simplify right side
    260,878.32x = 86,155,823,589.09
  5. Step 5: Solve for x
    x = 86,155,823,589.09/260,878.32
  6. Step 6: Final answer
    x = 330,252.91

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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.