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Finding the Fourth Proportional to 616,856.14, 922,725.30 and 579,064.78

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Solution

The fourth proportional to 616,856.14, 922,725.30 and 579,064.78 is: 866,195.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,856.14 : 922,725.30 = 579,064.78 : x
  2. Step 2: Convert to fraction form
    616,856.14/922,725.30 = 579,064.78/x
  3. Step 3: Cross multiply
    616,856.14x = 922,725.30 × 579,064.78
  4. Step 4: Simplify right side
    616,856.14x = 534,317,722,844.93
  5. Step 5: Solve for x
    x = 534,317,722,844.93/616,856.14
  6. Step 6: Final answer
    x = 866,195.03

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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.