Home / 523,815.36-786,065.64-287,324.52

Finding the Fourth Proportional to 523,815.36, 786,065.64 and 287,324.52

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Solution

The fourth proportional to 523,815.36, 786,065.64 and 287,324.52 is: 431,174.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,815.36 : 786,065.64 = 287,324.52 : x
  2. Step 2: Convert to fraction form
    523,815.36/786,065.64 = 287,324.52/x
  3. Step 3: Cross multiply
    523,815.36x = 786,065.64 × 287,324.52
  4. Step 4: Simplify right side
    523,815.36x = 225,855,932,701.49
  5. Step 5: Solve for x
    x = 225,855,932,701.49/523,815.36
  6. Step 6: Final answer
    x = 431,174.70

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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.