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Finding the Fourth Proportional to 346,787.61, 520,286.28 and 245,781.01

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Solution

The fourth proportional to 346,787.61, 520,286.28 and 245,781.01 is: 368,745.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,787.61 : 520,286.28 = 245,781.01 : x
  2. Step 2: Convert to fraction form
    346,787.61/520,286.28 = 245,781.01/x
  3. Step 3: Cross multiply
    346,787.61x = 520,286.28 × 245,781.01
  4. Step 4: Simplify right side
    346,787.61x = 127,876,487,387.54
  5. Step 5: Solve for x
    x = 127,876,487,387.54/346,787.61
  6. Step 6: Final answer
    x = 368,745.84

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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.