Home / 457,928.85-686,408.48-154,033.70

Finding the Fourth Proportional to 457,928.85, 686,408.48 and 154,033.70

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Solution

The fourth proportional to 457,928.85, 686,408.48 and 154,033.70 is: 230,887.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,928.85 : 686,408.48 = 154,033.70 : x
  2. Step 2: Convert to fraction form
    457,928.85/686,408.48 = 154,033.70/x
  3. Step 3: Cross multiply
    457,928.85x = 686,408.48 × 154,033.70
  4. Step 4: Simplify right side
    457,928.85x = 105,730,039,409.26
  5. Step 5: Solve for x
    x = 105,730,039,409.26/457,928.85
  6. Step 6: Final answer
    x = 230,887.48

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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.