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Finding the Fourth Proportional to 592,671.57, 817,886.70 and 320,739.45

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Solution

The fourth proportional to 592,671.57, 817,886.70 and 320,739.45 is: 442,620.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,671.57 : 817,886.70 = 320,739.45 : x
  2. Step 2: Convert to fraction form
    592,671.57/817,886.70 = 320,739.45/x
  3. Step 3: Cross multiply
    592,671.57x = 817,886.70 × 320,739.45
  4. Step 4: Simplify right side
    592,671.57x = 262,328,530,320.32
  5. Step 5: Solve for x
    x = 262,328,530,320.32/592,671.57
  6. Step 6: Final answer
    x = 442,620.40

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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.