Home / 458,152.19-687,496.19-191,890.40

Finding the Fourth Proportional to 458,152.19, 687,496.19 and 191,890.40

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Solution

The fourth proportional to 458,152.19, 687,496.19 and 191,890.40 is: 287,947.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,152.19 : 687,496.19 = 191,890.40 : x
  2. Step 2: Convert to fraction form
    458,152.19/687,496.19 = 191,890.40/x
  3. Step 3: Cross multiply
    458,152.19x = 687,496.19 × 191,890.40
  4. Step 4: Simplify right side
    458,152.19x = 131,923,914,500.64
  5. Step 5: Solve for x
    x = 131,923,914,500.64/458,152.19
  6. Step 6: Final answer
    x = 287,947.80

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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.