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Finding the Fourth Proportional to 261,592.54, 360,890.31 and 189,813.58

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Solution

The fourth proportional to 261,592.54, 360,890.31 and 189,813.58 is: 261,864.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,592.54 : 360,890.31 = 189,813.58 : x
  2. Step 2: Convert to fraction form
    261,592.54/360,890.31 = 189,813.58/x
  3. Step 3: Cross multiply
    261,592.54x = 360,890.31 × 189,813.58
  4. Step 4: Simplify right side
    261,592.54x = 68,501,881,728.41
  5. Step 5: Solve for x
    x = 68,501,881,728.41/261,592.54
  6. Step 6: Final answer
    x = 261,864.81

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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.