Home / 519,789.52-717,311.72-281,325.52

Finding the Fourth Proportional to 519,789.52, 717,311.72 and 281,325.52

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Solution

The fourth proportional to 519,789.52, 717,311.72 and 281,325.52 is: 388,230.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,789.52 : 717,311.72 = 281,325.52 : x
  2. Step 2: Convert to fraction form
    519,789.52/717,311.72 = 281,325.52/x
  3. Step 3: Cross multiply
    519,789.52x = 717,311.72 × 281,325.52
  4. Step 4: Simplify right side
    519,789.52x = 201,798,092,631.09
  5. Step 5: Solve for x
    x = 201,798,092,631.09/519,789.52
  6. Step 6: Final answer
    x = 388,230.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.