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Finding the Fourth Proportional to 2,186,999.40, 3,280,499.10 and 2,186,999.40

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Solution

The fourth proportional to 2,186,999.40, 3,280,499.10 and 2,186,999.40 is: 3,280,499.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186,999.40 : 3,280,499.10 = 2,186,999.40 : x
  2. Step 2: Convert to fraction form
    2,186,999.40/3,280,499.10 = 2,186,999.40/x
  3. Step 3: Cross multiply
    2,186,999.40x = 3,280,499.10 × 2,186,999.40
  4. Step 4: Simplify right side
    2,186,999.40x = 7,174,449,563,400.54
  5. Step 5: Solve for x
    x = 7,174,449,563,400.54/2,186,999.40
  6. Step 6: Final answer
    x = 3,280,499.10

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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.