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Finding the Fourth Proportional to 1,385,214,279.04, 1,911,597,559.68 and 750,135,879.04

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Solution

The fourth proportional to 1,385,214,279.04, 1,911,597,559.68 and 750,135,879.04 is: 1,035,188,517.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,214,279.04 : 1,911,597,559.68 = 750,135,879.04 : x
  2. Step 2: Convert to fraction form
    1,385,214,279.04/1,911,597,559.68 = 750,135,879.04/x
  3. Step 3: Cross multiply
    1,385,214,279.04x = 1,911,597,559.68 × 750,135,879.04
  4. Step 4: Simplify right side
    1,385,214,279.04x = 1,433,957,915,801,275,648
  5. Step 5: Solve for x
    x = 1,433,957,915,801,275,648/1,385,214,279.04
  6. Step 6: Final answer
    x = 1,035,188,517.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.