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Finding the Fourth Proportional to 770,615.10, 1,081,223.10 and 770,615.10

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Solution

The fourth proportional to 770,615.10, 1,081,223.10 and 770,615.10 is: 1,081,223.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,615.10 : 1,081,223.10 = 770,615.10 : x
  2. Step 2: Convert to fraction form
    770,615.10/1,081,223.10 = 770,615.10/x
  3. Step 3: Cross multiply
    770,615.10x = 1,081,223.10 × 770,615.10
  4. Step 4: Simplify right side
    770,615.10x = 833,206,847,328.81
  5. Step 5: Solve for x
    x = 833,206,847,328.81/770,615.10
  6. Step 6: Final answer
    x = 1,081,223.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.