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Finding the Fourth Proportional to 790,776, 1,183,188 and 554,579.52

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Solution

The fourth proportional to 790,776, 1,183,188 and 554,579.52 is: 829,782.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,776 : 1,183,188 = 554,579.52 : x
  2. Step 2: Convert to fraction form
    790,776/1,183,188 = 554,579.52/x
  3. Step 3: Cross multiply
    790,776x = 1,183,188 × 554,579.52
  4. Step 4: Simplify right side
    790,776x = 656,171,833,109.76
  5. Step 5: Solve for x
    x = 656,171,833,109.76/790,776
  6. Step 6: Final answer
    x = 829,782.18

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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.