Home / 458,323.26-687,518.01-191,815.62

Finding the Fourth Proportional to 458,323.26, 687,518.01 and 191,815.62

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Solution

The fourth proportional to 458,323.26, 687,518.01 and 191,815.62 is: 287,737.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,323.26 : 687,518.01 = 191,815.62 : x
  2. Step 2: Convert to fraction form
    458,323.26/687,518.01 = 191,815.62/x
  3. Step 3: Cross multiply
    458,323.26x = 687,518.01 × 191,815.62
  4. Step 4: Simplify right side
    458,323.26x = 131,876,693,349.32
  5. Step 5: Solve for x
    x = 131,876,693,349.32/458,323.26
  6. Step 6: Final answer
    x = 287,737.29

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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.