Home / 768,568,837.62-1,059,832,289.34-657,427,618.92

Finding the Fourth Proportional to 768,568,837.62, 1,059,832,289.34 and 657,427,618.92

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Solution

The fourth proportional to 768,568,837.62, 1,059,832,289.34 and 657,427,618.92 is: 906,572,039.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,568,837.62 : 1,059,832,289.34 = 657,427,618.92 : x
  2. Step 2: Convert to fraction form
    768,568,837.62/1,059,832,289.34 = 657,427,618.92/x
  3. Step 3: Cross multiply
    768,568,837.62x = 1,059,832,289.34 × 657,427,618.92
  4. Step 4: Simplify right side
    768,568,837.62x = 696,763,018,435,328,640
  5. Step 5: Solve for x
    x = 696,763,018,435,328,640/768,568,837.62
  6. Step 6: Final answer
    x = 906,572,039.26

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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.