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Finding the Fourth Proportional to 592,652.31, 817,860.13 and 320,720.16

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Solution

The fourth proportional to 592,652.31, 817,860.13 and 320,720.16 is: 442,593.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,652.31 : 817,860.13 = 320,720.16 : x
  2. Step 2: Convert to fraction form
    592,652.31/817,860.13 = 320,720.16/x
  3. Step 3: Cross multiply
    592,652.31x = 817,860.13 × 320,720.16
  4. Step 4: Simplify right side
    592,652.31x = 262,304,231,751.22
  5. Step 5: Solve for x
    x = 262,304,231,751.22/592,652.31
  6. Step 6: Final answer
    x = 442,593.79

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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.