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Finding the Fourth Proportional to 592,639.16, 817,842.03 and 320,707.05

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Solution

The fourth proportional to 592,639.16, 817,842.03 and 320,707.05 is: 442,575.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,639.16 : 817,842.03 = 320,707.05 : x
  2. Step 2: Convert to fraction form
    592,639.16/817,842.03 = 320,707.05/x
  3. Step 3: Cross multiply
    592,639.16x = 817,842.03 × 320,707.05
  4. Step 4: Simplify right side
    592,639.16x = 262,287,706,671.57
  5. Step 5: Solve for x
    x = 262,287,706,671.57/592,639.16
  6. Step 6: Final answer
    x = 442,575.72

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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.