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Finding the Fourth Proportional to 562,263.40, 775,932.24 and 307,618.84

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Solution

The fourth proportional to 562,263.40, 775,932.24 and 307,618.84 is: 424,518.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,263.40 : 775,932.24 = 307,618.84 : x
  2. Step 2: Convert to fraction form
    562,263.40/775,932.24 = 307,618.84/x
  3. Step 3: Cross multiply
    562,263.40x = 775,932.24 × 307,618.84
  4. Step 4: Simplify right side
    562,263.40x = 238,691,375,587.40
  5. Step 5: Solve for x
    x = 238,691,375,587.40/562,263.40
  6. Step 6: Final answer
    x = 424,518.79

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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.