Home / 819,189.53-1,227,818.94-369,383.77

Finding the Fourth Proportional to 819,189.53, 1,227,818.94 and 369,383.77

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Solution

The fourth proportional to 819,189.53, 1,227,818.94 and 369,383.77 is: 553,640.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,189.53 : 1,227,818.94 = 369,383.77 : x
  2. Step 2: Convert to fraction form
    819,189.53/1,227,818.94 = 369,383.77/x
  3. Step 3: Cross multiply
    819,189.53x = 1,227,818.94 × 369,383.77
  4. Step 4: Simplify right side
    819,189.53x = 453,536,388,934.60
  5. Step 5: Solve for x
    x = 453,536,388,934.60/819,189.53
  6. Step 6: Final answer
    x = 553,640.36

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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.