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Finding the Fourth Proportional to 2,754,328.80, 3,859,209.60 and 2,754,328.80

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Solution

The fourth proportional to 2,754,328.80, 3,859,209.60 and 2,754,328.80 is: 3,859,209.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,754,328.80 : 3,859,209.60 = 2,754,328.80 : x
  2. Step 2: Convert to fraction form
    2,754,328.80/3,859,209.60 = 2,754,328.80/x
  3. Step 3: Cross multiply
    2,754,328.80x = 3,859,209.60 × 2,754,328.80
  4. Step 4: Simplify right side
    2,754,328.80x = 10,629,532,146,516.48
  5. Step 5: Solve for x
    x = 10,629,532,146,516.48/2,754,328.80
  6. Step 6: Final answer
    x = 3,859,209.60

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Double scale
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1.5x scale

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.