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Finding the Fourth Proportional to 468,841.20, 647,002.54 and 253,980.74

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Solution

The fourth proportional to 468,841.20, 647,002.54 and 253,980.74 is: 350,494.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,841.20 : 647,002.54 = 253,980.74 : x
  2. Step 2: Convert to fraction form
    468,841.20/647,002.54 = 253,980.74/x
  3. Step 3: Cross multiply
    468,841.20x = 647,002.54 × 253,980.74
  4. Step 4: Simplify right side
    468,841.20x = 164,326,183,891.08
  5. Step 5: Solve for x
    x = 164,326,183,891.08/468,841.20
  6. Step 6: Final answer
    x = 350,494.33

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1.5x scale

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.