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Finding the Fourth Proportional to 950,942,405.80, 1,328,598,390.20 and 950,942,405.80

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Solution

The fourth proportional to 950,942,405.80, 1,328,598,390.20 and 950,942,405.80 is: 1,328,598,390.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    950,942,405.80 : 1,328,598,390.20 = 950,942,405.80 : x
  2. Step 2: Convert to fraction form
    950,942,405.80/1,328,598,390.20 = 950,942,405.80/x
  3. Step 3: Cross multiply
    950,942,405.80x = 1,328,598,390.20 × 950,942,405.80
  4. Step 4: Simplify right side
    950,942,405.80x = 1,263,420,549,518,795,008
  5. Step 5: Solve for x
    x = 1,263,420,549,518,795,008/950,942,405.80
  6. Step 6: Final answer
    x = 1,328,598,390.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.