Home / 457,316.20-686,000.22-141,817.96

Finding the Fourth Proportional to 457,316.20, 686,000.22 and 141,817.96

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Solution

The fourth proportional to 457,316.20, 686,000.22 and 141,817.96 is: 212,734.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,316.20 : 686,000.22 = 141,817.96 : x
  2. Step 2: Convert to fraction form
    457,316.20/686,000.22 = 141,817.96/x
  3. Step 3: Cross multiply
    457,316.20x = 686,000.22 × 141,817.96
  4. Step 4: Simplify right side
    457,316.20x = 97,287,151,759.95
  5. Step 5: Solve for x
    x = 97,287,151,759.95/457,316.20
  6. Step 6: Final answer
    x = 212,734.98

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1.5x scale

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.