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Finding the Fourth Proportional to 540,681.12, 746,194.38 and 298,981.92

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Solution

The fourth proportional to 540,681.12, 746,194.38 and 298,981.92 is: 412,625.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,681.12 : 746,194.38 = 298,981.92 : x
  2. Step 2: Convert to fraction form
    540,681.12/746,194.38 = 298,981.92/x
  3. Step 3: Cross multiply
    540,681.12x = 746,194.38 × 298,981.92
  4. Step 4: Simplify right side
    540,681.12x = 223,098,628,425.61
  5. Step 5: Solve for x
    x = 223,098,628,425.61/540,681.12
  6. Step 6: Final answer
    x = 412,625.15

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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.