Home / 819,789.59-1,131,311.64-457,236.94

Finding the Fourth Proportional to 819,789.59, 1,131,311.64 and 457,236.94

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Solution

The fourth proportional to 819,789.59, 1,131,311.64 and 457,236.94 is: 630,988.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,789.59 : 1,131,311.64 = 457,236.94 : x
  2. Step 2: Convert to fraction form
    819,789.59/1,131,311.64 = 457,236.94/x
  3. Step 3: Cross multiply
    819,789.59x = 1,131,311.64 × 457,236.94
  4. Step 4: Simplify right side
    819,789.59x = 517,277,472,459.98
  5. Step 5: Solve for x
    x = 517,277,472,459.98/819,789.59
  6. Step 6: Final answer
    x = 630,988.10

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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.