Home / 287,717.40-431,576.10-183,000.60

Finding the Fourth Proportional to 287,717.40, 431,576.10 and 183,000.60

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Solution

The fourth proportional to 287,717.40, 431,576.10 and 183,000.60 is: 274,500.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,717.40 : 431,576.10 = 183,000.60 : x
  2. Step 2: Convert to fraction form
    287,717.40/431,576.10 = 183,000.60/x
  3. Step 3: Cross multiply
    287,717.40x = 431,576.10 × 183,000.60
  4. Step 4: Simplify right side
    287,717.40x = 78,978,685,245.66
  5. Step 5: Solve for x
    x = 78,978,685,245.66/287,717.40
  6. Step 6: Final answer
    x = 274,500.90

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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.