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Finding the Fourth Proportional to 576,735.30, 865,254.15 and 221,760.90

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Solution

The fourth proportional to 576,735.30, 865,254.15 and 221,760.90 is: 332,699.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,735.30 : 865,254.15 = 221,760.90 : x
  2. Step 2: Convert to fraction form
    576,735.30/865,254.15 = 221,760.90/x
  3. Step 3: Cross multiply
    576,735.30x = 865,254.15 × 221,760.90
  4. Step 4: Simplify right side
    576,735.30x = 191,879,539,032.74
  5. Step 5: Solve for x
    x = 191,879,539,032.74/576,735.30
  6. Step 6: Final answer
    x = 332,699.49

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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.