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Finding the Fourth Proportional to 261,591.54, 360,888.93 and 189,812.58

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Solution

The fourth proportional to 261,591.54, 360,888.93 and 189,812.58 is: 261,863.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,591.54 : 360,888.93 = 189,812.58 : x
  2. Step 2: Convert to fraction form
    261,591.54/360,888.93 = 189,812.58/x
  3. Step 3: Cross multiply
    261,591.54x = 360,888.93 × 189,812.58
  4. Step 4: Simplify right side
    261,591.54x = 68,501,258,896.74
  5. Step 5: Solve for x
    x = 68,501,258,896.74/261,591.54
  6. Step 6: Final answer
    x = 261,863.43

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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.