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Finding the Fourth Proportional to 260,670.65, 359,539.98 and 239,229.59

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Solution

The fourth proportional to 260,670.65, 359,539.98 and 239,229.59 is: 329,966.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,670.65 : 359,539.98 = 239,229.59 : x
  2. Step 2: Convert to fraction form
    260,670.65/359,539.98 = 239,229.59/x
  3. Step 3: Cross multiply
    260,670.65x = 359,539.98 × 239,229.59
  4. Step 4: Simplify right side
    260,670.65x = 86,012,602,004.01
  5. Step 5: Solve for x
    x = 86,012,602,004.01/260,670.65
  6. Step 6: Final answer
    x = 329,966.58

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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.