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Finding the Fourth Proportional to 610,685.52, 842,759.52 and 338,744.54

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Solution

The fourth proportional to 610,685.52, 842,759.52 and 338,744.54 is: 467,474.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,685.52 : 842,759.52 = 338,744.54 : x
  2. Step 2: Convert to fraction form
    610,685.52/842,759.52 = 338,744.54/x
  3. Step 3: Cross multiply
    610,685.52x = 842,759.52 × 338,744.54
  4. Step 4: Simplify right side
    610,685.52x = 285,480,185,933.02
  5. Step 5: Solve for x
    x = 285,480,185,933.02/610,685.52
  6. Step 6: Final answer
    x = 467,474.95

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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.