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Finding the Fourth Proportional to 625,547.64, 863,178.47 and 444,193.40

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Solution

The fourth proportional to 625,547.64, 863,178.47 and 444,193.40 is: 612,932.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,547.64 : 863,178.47 = 444,193.40 : x
  2. Step 2: Convert to fraction form
    625,547.64/863,178.47 = 444,193.40/x
  3. Step 3: Cross multiply
    625,547.64x = 863,178.47 × 444,193.40
  4. Step 4: Simplify right side
    625,547.64x = 383,418,183,497.39
  5. Step 5: Solve for x
    x = 383,418,183,497.39/625,547.64
  6. Step 6: Final answer
    x = 612,932.02

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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.