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Finding the Fourth Proportional to 526,398.49, 789,908.78 and 194,207.77

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Solution

The fourth proportional to 526,398.49, 789,908.78 and 194,207.77 is: 291,426.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,398.49 : 789,908.78 = 194,207.77 : x
  2. Step 2: Convert to fraction form
    526,398.49/789,908.78 = 194,207.77/x
  3. Step 3: Cross multiply
    526,398.49x = 789,908.78 × 194,207.77
  4. Step 4: Simplify right side
    526,398.49x = 153,406,422,667.22
  5. Step 5: Solve for x
    x = 153,406,422,667.22/526,398.49
  6. Step 6: Final answer
    x = 291,426.41

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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.