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Finding the Fourth Proportional to 625,300.16, 937,959.46 and 198,901.80

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Solution

The fourth proportional to 625,300.16, 937,959.46 and 198,901.80 is: 298,355.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,300.16 : 937,959.46 = 198,901.80 : x
  2. Step 2: Convert to fraction form
    625,300.16/937,959.46 = 198,901.80/x
  3. Step 3: Cross multiply
    625,300.16x = 937,959.46 × 198,901.80
  4. Step 4: Simplify right side
    625,300.16x = 186,561,824,921.03
  5. Step 5: Solve for x
    x = 186,561,824,921.03/625,300.16
  6. Step 6: Final answer
    x = 298,355.63

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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.