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Finding the Fourth Proportional to 554,877, 765,648.10 and 336,972.32

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Solution

The fourth proportional to 554,877, 765,648.10 and 336,972.32 is: 464,971.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,877 : 765,648.10 = 336,972.32 : x
  2. Step 2: Convert to fraction form
    554,877/765,648.10 = 336,972.32/x
  3. Step 3: Cross multiply
    554,877x = 765,648.10 × 336,972.32
  4. Step 4: Simplify right side
    554,877x = 258,002,216,560.59
  5. Step 5: Solve for x
    x = 258,002,216,560.59/554,877
  6. Step 6: Final answer
    x = 464,971.91

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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.