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Finding the Fourth Proportional to 592,661.62, 817,873.00 and 320,729.52

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Solution

The fourth proportional to 592,661.62, 817,873.00 and 320,729.52 is: 442,606.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,661.62 : 817,873.00 = 320,729.52 : x
  2. Step 2: Convert to fraction form
    592,661.62/817,873.00 = 320,729.52/x
  3. Step 3: Cross multiply
    592,661.62x = 817,873.00 × 320,729.52
  4. Step 4: Simplify right side
    592,661.62x = 262,316,016,976.16
  5. Step 5: Solve for x
    x = 262,316,016,976.16/592,661.62
  6. Step 6: Final answer
    x = 442,606.72

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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.