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Finding the Fourth Proportional to 562,389.38, 775,393.34 and 469,388.62

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Solution

The fourth proportional to 562,389.38, 775,393.34 and 469,388.62 is: 647,168.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,389.38 : 775,393.34 = 469,388.62 : x
  2. Step 2: Convert to fraction form
    562,389.38/775,393.34 = 469,388.62/x
  3. Step 3: Cross multiply
    562,389.38x = 775,393.34 × 469,388.62
  4. Step 4: Simplify right side
    562,389.38x = 363,960,805,942.82
  5. Step 5: Solve for x
    x = 363,960,805,942.82/562,389.38
  6. Step 6: Final answer
    x = 647,168.71

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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.