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Finding the Fourth Proportional to 592,603.71, 817,787.42 and 320,665.65

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Solution

The fourth proportional to 592,603.71, 817,787.42 and 320,665.65 is: 442,515.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,603.71 : 817,787.42 = 320,665.65 : x
  2. Step 2: Convert to fraction form
    592,603.71/817,787.42 = 320,665.65/x
  3. Step 3: Cross multiply
    592,603.71x = 817,787.42 × 320,665.65
  4. Step 4: Simplify right side
    592,603.71x = 262,236,334,596.12
  5. Step 5: Solve for x
    x = 262,236,334,596.12/592,603.71
  6. Step 6: Final answer
    x = 442,515.51

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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.