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Finding the Fourth Proportional to 592,664.88, 817,871.28 and 320,726.88

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Solution

The fourth proportional to 592,664.88, 817,871.28 and 320,726.88 is: 442,599.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,664.88 : 817,871.28 = 320,726.88 : x
  2. Step 2: Convert to fraction form
    592,664.88/817,871.28 = 320,726.88/x
  3. Step 3: Cross multiply
    592,664.88x = 817,871.28 × 320,726.88
  4. Step 4: Simplify right side
    592,664.88x = 262,313,303,876.01
  5. Step 5: Solve for x
    x = 262,313,303,876.01/592,664.88
  6. Step 6: Final answer
    x = 442,599.71

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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.