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Finding the Fourth Proportional to 616,855.14, 922,723.80 and 579,063.78

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Solution

The fourth proportional to 616,855.14, 922,723.80 and 579,063.78 is: 866,193.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,855.14 : 922,723.80 = 579,063.78 : x
  2. Step 2: Convert to fraction form
    616,855.14/922,723.80 = 579,063.78/x
  3. Step 3: Cross multiply
    616,855.14x = 922,723.80 × 579,063.78
  4. Step 4: Simplify right side
    616,855.14x = 534,315,931,523.96
  5. Step 5: Solve for x
    x = 534,315,931,523.96/616,855.14
  6. Step 6: Final answer
    x = 866,193.53

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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.