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Finding the Fourth Proportional to 587,252.58, 810,465.10 and 329,128.26

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Solution

The fourth proportional to 587,252.58, 810,465.10 and 329,128.26 is: 454,228.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,252.58 : 810,465.10 = 329,128.26 : x
  2. Step 2: Convert to fraction form
    587,252.58/810,465.10 = 329,128.26/x
  3. Step 3: Cross multiply
    587,252.58x = 810,465.10 × 329,128.26
  4. Step 4: Simplify right side
    587,252.58x = 266,746,968,153.73
  5. Step 5: Solve for x
    x = 266,746,968,153.73/587,252.58
  6. Step 6: Final answer
    x = 454,228.69

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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.