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Finding the Fourth Proportional to 468,265.72, 646,208.32 and 253,405.73

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Solution

The fourth proportional to 468,265.72, 646,208.32 and 253,405.73 is: 349,700.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,265.72 : 646,208.32 = 253,405.73 : x
  2. Step 2: Convert to fraction form
    468,265.72/646,208.32 = 253,405.73/x
  3. Step 3: Cross multiply
    468,265.72x = 646,208.32 × 253,405.73
  4. Step 4: Simplify right side
    468,265.72x = 163,752,891,061.67
  5. Step 5: Solve for x
    x = 163,752,891,061.67/468,265.72
  6. Step 6: Final answer
    x = 349,700.79

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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.