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Finding the Fourth Proportional to 1,178,584.40, 1,766,710.20 and 579,054.80

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Solution

The fourth proportional to 1,178,584.40, 1,766,710.20 and 579,054.80 is: 868,009.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,584.40 : 1,766,710.20 = 579,054.80 : x
  2. Step 2: Convert to fraction form
    1,178,584.40/1,766,710.20 = 579,054.80/x
  3. Step 3: Cross multiply
    1,178,584.40x = 1,766,710.20 × 579,054.80
  4. Step 4: Simplify right side
    1,178,584.40x = 1,023,022,021,518.96
  5. Step 5: Solve for x
    x = 1,023,022,021,518.96/1,178,584.40
  6. Step 6: Final answer
    x = 868,009.13

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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.