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Finding the Fourth Proportional to 472,575.78, 652,193.33 and 268,690.68

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Solution

The fourth proportional to 472,575.78, 652,193.33 and 268,690.68 is: 370,815.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,575.78 : 652,193.33 = 268,690.68 : x
  2. Step 2: Convert to fraction form
    472,575.78/652,193.33 = 268,690.68/x
  3. Step 3: Cross multiply
    472,575.78x = 652,193.33 × 268,690.68
  4. Step 4: Simplify right side
    472,575.78x = 175,238,267,985.71
  5. Step 5: Solve for x
    x = 175,238,267,985.71/472,575.78
  6. Step 6: Final answer
    x = 370,815.17

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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.