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Finding the Fourth Proportional to 1,212,794.45, 1,700,400.55 and 1,212,794.45

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Solution

The fourth proportional to 1,212,794.45, 1,700,400.55 and 1,212,794.45 is: 1,700,400.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,794.45 : 1,700,400.55 = 1,212,794.45 : x
  2. Step 2: Convert to fraction form
    1,212,794.45/1,700,400.55 = 1,212,794.45/x
  3. Step 3: Cross multiply
    1,212,794.45x = 1,700,400.55 × 1,212,794.45
  4. Step 4: Simplify right side
    1,212,794.45x = 2,062,236,349,816.95
  5. Step 5: Solve for x
    x = 2,062,236,349,816.95/1,212,794.45
  6. Step 6: Final answer
    x = 1,700,400.55

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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.