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Finding the Fourth Proportional to 489,567.39, 675,585.46 and 271,785.53

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Solution

The fourth proportional to 489,567.39, 675,585.46 and 271,785.53 is: 375,054.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,567.39 : 675,585.46 = 271,785.53 : x
  2. Step 2: Convert to fraction form
    489,567.39/675,585.46 = 271,785.53/x
  3. Step 3: Cross multiply
    489,567.39x = 675,585.46 × 271,785.53
  4. Step 4: Simplify right side
    489,567.39x = 183,614,350,534.92
  5. Step 5: Solve for x
    x = 183,614,350,534.92/489,567.39
  6. Step 6: Final answer
    x = 375,054.29

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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.