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Finding the Fourth Proportional to 970,812.80, 1,453,108.80 and 759,305.60

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Solution

The fourth proportional to 970,812.80, 1,453,108.80 and 759,305.60 is: 1,136,525.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,812.80 : 1,453,108.80 = 759,305.60 : x
  2. Step 2: Convert to fraction form
    970,812.80/1,453,108.80 = 759,305.60/x
  3. Step 3: Cross multiply
    970,812.80x = 1,453,108.80 × 759,305.60
  4. Step 4: Simplify right side
    970,812.80x = 1,103,353,649,249.28
  5. Step 5: Solve for x
    x = 1,103,353,649,249.28/970,812.80
  6. Step 6: Final answer
    x = 1,136,525.65

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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.