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Finding the Fourth Proportional to 607,978.14, 839,012.48 and 332,341.62

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Solution

The fourth proportional to 607,978.14, 839,012.48 and 332,341.62 is: 458,632.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,978.14 : 839,012.48 = 332,341.62 : x
  2. Step 2: Convert to fraction form
    607,978.14/839,012.48 = 332,341.62/x
  3. Step 3: Cross multiply
    607,978.14x = 839,012.48 × 332,341.62
  4. Step 4: Simplify right side
    607,978.14x = 278,838,766,803.42
  5. Step 5: Solve for x
    x = 278,838,766,803.42/607,978.14
  6. Step 6: Final answer
    x = 458,632.88

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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.