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Finding the Fourth Proportional to 655,217.78, 983,201.19 and 355,722.71

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Solution

The fourth proportional to 655,217.78, 983,201.19 and 355,722.71 is: 533,787.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,217.78 : 983,201.19 = 355,722.71 : x
  2. Step 2: Convert to fraction form
    655,217.78/983,201.19 = 355,722.71/x
  3. Step 3: Cross multiply
    655,217.78x = 983,201.19 × 355,722.71
  4. Step 4: Simplify right side
    655,217.78x = 349,746,985,532.06
  5. Step 5: Solve for x
    x = 349,746,985,532.06/655,217.78
  6. Step 6: Final answer
    x = 533,787.39

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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.