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Finding the Fourth Proportional to 592,637.70, 817,833.79 and 320,699.64

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Solution

The fourth proportional to 592,637.70, 817,833.79 and 320,699.64 is: 442,562.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,637.70 : 817,833.79 = 320,699.64 : x
  2. Step 2: Convert to fraction form
    592,637.70/817,833.79 = 320,699.64/x
  3. Step 3: Cross multiply
    592,637.70x = 817,833.79 × 320,699.64
  4. Step 4: Simplify right side
    592,637.70x = 262,279,002,032.84
  5. Step 5: Solve for x
    x = 262,279,002,032.84/592,637.70
  6. Step 6: Final answer
    x = 442,562.13

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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.