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Finding the Fourth Proportional to 1,243,000.45, 1,744,924.55 and 1,243,000.45

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Solution

The fourth proportional to 1,243,000.45, 1,744,924.55 and 1,243,000.45 is: 1,744,924.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,000.45 : 1,744,924.55 = 1,243,000.45 : x
  2. Step 2: Convert to fraction form
    1,243,000.45/1,744,924.55 = 1,243,000.45/x
  3. Step 3: Cross multiply
    1,243,000.45x = 1,744,924.55 × 1,243,000.45
  4. Step 4: Simplify right side
    1,243,000.45x = 2,168,942,000,866.05
  5. Step 5: Solve for x
    x = 2,168,942,000,866.05/1,243,000.45
  6. Step 6: Final answer
    x = 1,744,924.55

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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.