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Finding the Fourth Proportional to 927,738.70, 1,391,608.05 and 927,738.70

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Solution

The fourth proportional to 927,738.70, 1,391,608.05 and 927,738.70 is: 1,391,608.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,738.70 : 1,391,608.05 = 927,738.70 : x
  2. Step 2: Convert to fraction form
    927,738.70/1,391,608.05 = 927,738.70/x
  3. Step 3: Cross multiply
    927,738.70x = 1,391,608.05 × 927,738.70
  4. Step 4: Simplify right side
    927,738.70x = 1,291,048,643,216.53
  5. Step 5: Solve for x
    x = 1,291,048,643,216.53/927,738.70
  6. Step 6: Final answer
    x = 1,391,608.05

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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.