Home / 623,944,786-861,033,279.75-345,480,330.82

Finding the Fourth Proportional to 623,944,786, 861,033,279.75 and 345,480,330.82

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Solution

The fourth proportional to 623,944,786, 861,033,279.75 and 345,480,330.82 is: 476,757,028.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,944,786 : 861,033,279.75 = 345,480,330.82 : x
  2. Step 2: Convert to fraction form
    623,944,786/861,033,279.75 = 345,480,330.82/x
  3. Step 3: Cross multiply
    623,944,786x = 861,033,279.75 × 345,480,330.82
  4. Step 4: Simplify right side
    623,944,786x = 297,470,062,335,059,584
  5. Step 5: Solve for x
    x = 297,470,062,335,059,584/623,944,786
  6. Step 6: Final answer
    x = 476,757,028.84

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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.