Home / 861,054.62-1,291,583.01-411,669.86

Finding the Fourth Proportional to 861,054.62, 1,291,583.01 and 411,669.86

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Solution

The fourth proportional to 861,054.62, 1,291,583.01 and 411,669.86 is: 617,505.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,054.62 : 1,291,583.01 = 411,669.86 : x
  2. Step 2: Convert to fraction form
    861,054.62/1,291,583.01 = 411,669.86/x
  3. Step 3: Cross multiply
    861,054.62x = 1,291,583.01 × 411,669.86
  4. Step 4: Simplify right side
    861,054.62x = 531,705,796,905.08
  5. Step 5: Solve for x
    x = 531,705,796,905.08/861,054.62
  6. Step 6: Final answer
    x = 617,505.31

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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.