Home / 619,400,408.70-929,100,613.05-343,901,394.30

Finding the Fourth Proportional to 619,400,408.70, 929,100,613.05 and 343,901,394.30

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Solution

The fourth proportional to 619,400,408.70, 929,100,613.05 and 343,901,394.30 is: 515,852,091.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,400,408.70 : 929,100,613.05 = 343,901,394.30 : x
  2. Step 2: Convert to fraction form
    619,400,408.70/929,100,613.05 = 343,901,394.30/x
  3. Step 3: Cross multiply
    619,400,408.70x = 929,100,613.05 × 343,901,394.30
  4. Step 4: Simplify right side
    619,400,408.70x = 319,518,996,272,879,744
  5. Step 5: Solve for x
    x = 319,518,996,272,879,744/619,400,408.70
  6. Step 6: Final answer
    x = 515,852,091.45

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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.