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Finding the Fourth Proportional to 439,718.60, 616,850.20 and 439,718.60

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Solution

The fourth proportional to 439,718.60, 616,850.20 and 439,718.60 is: 616,850.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,718.60 : 616,850.20 = 439,718.60 : x
  2. Step 2: Convert to fraction form
    439,718.60/616,850.20 = 439,718.60/x
  3. Step 3: Cross multiply
    439,718.60x = 616,850.20 × 439,718.60
  4. Step 4: Simplify right side
    439,718.60x = 271,240,506,353.72
  5. Step 5: Solve for x
    x = 271,240,506,353.72/439,718.60
  6. Step 6: Final answer
    x = 616,850.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.