Home / 812,671,057.62-1,121,479,892.37-441,395,746.20

Finding the Fourth Proportional to 812,671,057.62, 1,121,479,892.37 and 441,395,746.20

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Solution

The fourth proportional to 812,671,057.62, 1,121,479,892.37 and 441,395,746.20 is: 609,122,780.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,671,057.62 : 1,121,479,892.37 = 441,395,746.20 : x
  2. Step 2: Convert to fraction form
    812,671,057.62/1,121,479,892.37 = 441,395,746.20/x
  3. Step 3: Cross multiply
    812,671,057.62x = 1,121,479,892.37 × 441,395,746.20
  4. Step 4: Simplify right side
    812,671,057.62x = 495,016,453,940,951,744
  5. Step 5: Solve for x
    x = 495,016,453,940,951,744/812,671,057.62
  6. Step 6: Final answer
    x = 609,122,780.12

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Double scale
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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.