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Finding the Fourth Proportional to 576,957.50, 865,473.16 and 221,971.56

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Solution

The fourth proportional to 576,957.50, 865,473.16 and 221,971.56 is: 332,971.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,957.50 : 865,473.16 = 221,971.56 : x
  2. Step 2: Convert to fraction form
    576,957.50/865,473.16 = 221,971.56/x
  3. Step 3: Cross multiply
    576,957.50x = 865,473.16 × 221,971.56
  4. Step 4: Simplify right side
    576,957.50x = 192,110,427,463.33
  5. Step 5: Solve for x
    x = 192,110,427,463.33/576,957.50
  6. Step 6: Final answer
    x = 332,971.54

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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.