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Finding the Fourth Proportional to 592,603.84, 817,787.60 and 320,665.78

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Solution

The fourth proportional to 592,603.84, 817,787.60 and 320,665.78 is: 442,515.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,603.84 : 817,787.60 = 320,665.78 : x
  2. Step 2: Convert to fraction form
    592,603.84/817,787.60 = 320,665.78/x
  3. Step 3: Cross multiply
    592,603.84x = 817,787.60 × 320,665.78
  4. Step 4: Simplify right side
    592,603.84x = 262,236,498,628.33
  5. Step 5: Solve for x
    x = 262,236,498,628.33/592,603.84
  6. Step 6: Final answer
    x = 442,515.69

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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.