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Finding the Fourth Proportional to 389,799, 584,698.52 and 94,311

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Solution

The fourth proportional to 389,799, 584,698.52 and 94,311 is: 141,466.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,799 : 584,698.52 = 94,311 : x
  2. Step 2: Convert to fraction form
    389,799/584,698.52 = 94,311/x
  3. Step 3: Cross multiply
    389,799x = 584,698.52 × 94,311
  4. Step 4: Simplify right side
    389,799x = 55,143,502,355.50
  5. Step 5: Solve for x
    x = 55,143,502,355.50/389,799
  6. Step 6: Final answer
    x = 141,466.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.