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Finding the Fourth Proportional to 592,728, 817,958.04 and 320,789.76

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Solution

The fourth proportional to 592,728, 817,958.04 and 320,789.76 is: 442,686.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,728 : 817,958.04 = 320,789.76 : x
  2. Step 2: Convert to fraction form
    592,728/817,958.04 = 320,789.76/x
  3. Step 3: Cross multiply
    592,728x = 817,958.04 × 320,789.76
  4. Step 4: Simplify right side
    592,728x = 262,392,563,341.67
  5. Step 5: Solve for x
    x = 262,392,563,341.67/592,728
  6. Step 6: Final answer
    x = 442,686.30

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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.