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Finding the Fourth Proportional to 561,720.78, 841,835.97 and 245,833.74

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Solution

The fourth proportional to 561,720.78, 841,835.97 and 245,833.74 is: 368,424.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,720.78 : 841,835.97 = 245,833.74 : x
  2. Step 2: Convert to fraction form
    561,720.78/841,835.97 = 245,833.74/x
  3. Step 3: Cross multiply
    561,720.78x = 841,835.97 × 245,833.74
  4. Step 4: Simplify right side
    561,720.78x = 206,951,684,971.63
  5. Step 5: Solve for x
    x = 206,951,684,971.63/561,720.78
  6. Step 6: Final answer
    x = 368,424.48

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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.