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Finding the Fourth Proportional to 2,481,615.70, 3,478,985.90 and 2,481,615.70

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Solution

The fourth proportional to 2,481,615.70, 3,478,985.90 and 2,481,615.70 is: 3,478,985.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,481,615.70 : 3,478,985.90 = 2,481,615.70 : x
  2. Step 2: Convert to fraction form
    2,481,615.70/3,478,985.90 = 2,481,615.70/x
  3. Step 3: Cross multiply
    2,481,615.70x = 3,478,985.90 × 2,481,615.70
  4. Step 4: Simplify right side
    2,481,615.70x = 8,633,506,029,518.63
  5. Step 5: Solve for x
    x = 8,633,506,029,518.63/2,481,615.70
  6. Step 6: Final answer
    x = 3,478,985.90

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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.