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Finding the Fourth Proportional to 625,184.22, 937,678.14 and 198,663.89

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Solution

The fourth proportional to 625,184.22, 937,678.14 and 198,663.89 is: 297,964.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,184.22 : 937,678.14 = 198,663.89 : x
  2. Step 2: Convert to fraction form
    625,184.22/937,678.14 = 198,663.89/x
  3. Step 3: Cross multiply
    625,184.22x = 937,678.14 × 198,663.89
  4. Step 4: Simplify right side
    625,184.22x = 186,282,785,012.83
  5. Step 5: Solve for x
    x = 186,282,785,012.83/625,184.22
  6. Step 6: Final answer
    x = 297,964.63

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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.