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Finding the Fourth Proportional to 587,305.77, 810,289.22 and 329,145

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Solution

The fourth proportional to 587,305.77, 810,289.22 and 329,145 is: 454,112.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,305.77 : 810,289.22 = 329,145 : x
  2. Step 2: Convert to fraction form
    587,305.77/810,289.22 = 329,145/x
  3. Step 3: Cross multiply
    587,305.77x = 810,289.22 × 329,145
  4. Step 4: Simplify right side
    587,305.77x = 266,702,643,671.18
  5. Step 5: Solve for x
    x = 266,702,643,671.18/587,305.77
  6. Step 6: Final answer
    x = 454,112.08

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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.