Home / 653,183,999.10-979,775,998.65-638,067,455.10

Finding the Fourth Proportional to 653,183,999.10, 979,775,998.65 and 638,067,455.10

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Solution

The fourth proportional to 653,183,999.10, 979,775,998.65 and 638,067,455.10 is: 957,101,182.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,183,999.10 : 979,775,998.65 = 638,067,455.10 : x
  2. Step 2: Convert to fraction form
    653,183,999.10/979,775,998.65 = 638,067,455.10/x
  3. Step 3: Cross multiply
    653,183,999.10x = 979,775,998.65 × 638,067,455.10
  4. Step 4: Simplify right side
    653,183,999.10x = 625,163,178,026,666,496
  5. Step 5: Solve for x
    x = 625,163,178,026,666,496/653,183,999.10
  6. Step 6: Final answer
    x = 957,101,182.65

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Double scale
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Similar ratio
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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.