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Finding the Fourth Proportional to 750,815.70, 1,126,223.55 and 750,815.70

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Solution

The fourth proportional to 750,815.70, 1,126,223.55 and 750,815.70 is: 1,126,223.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,815.70 : 1,126,223.55 = 750,815.70 : x
  2. Step 2: Convert to fraction form
    750,815.70/1,126,223.55 = 750,815.70/x
  3. Step 3: Cross multiply
    750,815.70x = 1,126,223.55 × 750,815.70
  4. Step 4: Simplify right side
    750,815.70x = 845,586,323,049.74
  5. Step 5: Solve for x
    x = 845,586,323,049.74/750,815.70
  6. Step 6: Final answer
    x = 1,126,223.55

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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.