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Finding the Fourth Proportional to 467,079.12, 644,300.56 and 294,935.76

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Solution

The fourth proportional to 467,079.12, 644,300.56 and 294,935.76 is: 406,841.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,079.12 : 644,300.56 = 294,935.76 : x
  2. Step 2: Convert to fraction form
    467,079.12/644,300.56 = 294,935.76/x
  3. Step 3: Cross multiply
    467,079.12x = 644,300.56 × 294,935.76
  4. Step 4: Simplify right side
    467,079.12x = 190,027,275,332.03
  5. Step 5: Solve for x
    x = 190,027,275,332.03/467,079.12
  6. Step 6: Final answer
    x = 406,841.73

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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.