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Finding the Fourth Proportional to 854,147,766.20, 1,281,221,649.30 and 854,147,766.20

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Solution

The fourth proportional to 854,147,766.20, 1,281,221,649.30 and 854,147,766.20 is: 1,281,221,649.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,147,766.20 : 1,281,221,649.30 = 854,147,766.20 : x
  2. Step 2: Convert to fraction form
    854,147,766.20/1,281,221,649.30 = 854,147,766.20/x
  3. Step 3: Cross multiply
    854,147,766.20x = 1,281,221,649.30 × 854,147,766.20
  4. Step 4: Simplify right side
    854,147,766.20x = 1,094,352,609,756,674,816
  5. Step 5: Solve for x
    x = 1,094,352,609,756,674,816/854,147,766.20
  6. Step 6: Final answer
    x = 1,281,221,649.30

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1.5x scale

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.