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Finding the Fourth Proportional to 936,748.20, 1,405,122.30 and 936,748.20

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Solution

The fourth proportional to 936,748.20, 1,405,122.30 and 936,748.20 is: 1,405,122.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,748.20 : 1,405,122.30 = 936,748.20 : x
  2. Step 2: Convert to fraction form
    936,748.20/1,405,122.30 = 936,748.20/x
  3. Step 3: Cross multiply
    936,748.20x = 1,405,122.30 × 936,748.20
  4. Step 4: Simplify right side
    936,748.20x = 1,316,245,785,304.86
  5. Step 5: Solve for x
    x = 1,316,245,785,304.86/936,748.20
  6. Step 6: Final answer
    x = 1,405,122.30

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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.