Home / 819,187.04-1,228,781.43-442,502.87

Finding the Fourth Proportional to 819,187.04, 1,228,781.43 and 442,502.87

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Solution

The fourth proportional to 819,187.04, 1,228,781.43 and 442,502.87 is: 663,754.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,187.04 : 1,228,781.43 = 442,502.87 : x
  2. Step 2: Convert to fraction form
    819,187.04/1,228,781.43 = 442,502.87/x
  3. Step 3: Cross multiply
    819,187.04x = 1,228,781.43 × 442,502.87
  4. Step 4: Simplify right side
    819,187.04x = 543,739,303,233.80
  5. Step 5: Solve for x
    x = 543,739,303,233.80/819,187.04
  6. Step 6: Final answer
    x = 663,754.77

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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.