Home / 1,259,714,878.40-1,889,572,317.60-441,720,891.20

Finding the Fourth Proportional to 1,259,714,878.40, 1,889,572,317.60 and 441,720,891.20

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Solution

The fourth proportional to 1,259,714,878.40, 1,889,572,317.60 and 441,720,891.20 is: 662,581,336.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,714,878.40 : 1,889,572,317.60 = 441,720,891.20 : x
  2. Step 2: Convert to fraction form
    1,259,714,878.40/1,889,572,317.60 = 441,720,891.20/x
  3. Step 3: Cross multiply
    1,259,714,878.40x = 1,889,572,317.60 × 441,720,891.20
  4. Step 4: Simplify right side
    1,259,714,878.40x = 834,663,568,117,121,408
  5. Step 5: Solve for x
    x = 834,663,568,117,121,408/1,259,714,878.40
  6. Step 6: Final answer
    x = 662,581,336.80

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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.