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Finding the Fourth Proportional to 1,064,722,805.20, 1,594,396,822.20 and 699,238,363.60

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Solution

The fourth proportional to 1,064,722,805.20, 1,594,396,822.20 and 699,238,363.60 is: 1,047,092,651.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,064,722,805.20 : 1,594,396,822.20 = 699,238,363.60 : x
  2. Step 2: Convert to fraction form
    1,064,722,805.20/1,594,396,822.20 = 699,238,363.60/x
  3. Step 3: Cross multiply
    1,064,722,805.20x = 1,594,396,822.20 × 699,238,363.60
  4. Step 4: Simplify right side
    1,064,722,805.20x = 1,114,863,424,884,168,192
  5. Step 5: Solve for x
    x = 1,114,863,424,884,168,192/1,064,722,805.20
  6. Step 6: Final answer
    x = 1,047,092,651.19

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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.