Home / 414,902,651.40-622,353,977.10-391,094,094.60

Finding the Fourth Proportional to 414,902,651.40, 622,353,977.10 and 391,094,094.60

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Solution

The fourth proportional to 414,902,651.40, 622,353,977.10 and 391,094,094.60 is: 586,641,141.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,902,651.40 : 622,353,977.10 = 391,094,094.60 : x
  2. Step 2: Convert to fraction form
    414,902,651.40/622,353,977.10 = 391,094,094.60/x
  3. Step 3: Cross multiply
    414,902,651.40x = 622,353,977.10 × 391,094,094.60
  4. Step 4: Simplify right side
    414,902,651.40x = 243,398,965,194,633,664
  5. Step 5: Solve for x
    x = 243,398,965,194,633,664/414,902,651.40
  6. Step 6: Final answer
    x = 586,641,141.90

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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.