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Finding the Fourth Proportional to 768,908.40, 1,153,362.60 and 732,166.80

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Solution

The fourth proportional to 768,908.40, 1,153,362.60 and 732,166.80 is: 1,098,250.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,908.40 : 1,153,362.60 = 732,166.80 : x
  2. Step 2: Convert to fraction form
    768,908.40/1,153,362.60 = 732,166.80/x
  3. Step 3: Cross multiply
    768,908.40x = 1,153,362.60 × 732,166.80
  4. Step 4: Simplify right side
    768,908.40x = 844,453,804,081.68
  5. Step 5: Solve for x
    x = 844,453,804,081.68/768,908.40
  6. Step 6: Final answer
    x = 1,098,250.20

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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.