Home / 828,507.21-1,143,104.12-497,228.57

Finding the Fourth Proportional to 828,507.21, 1,143,104.12 and 497,228.57

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Solution

The fourth proportional to 828,507.21, 1,143,104.12 and 497,228.57 is: 686,033.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,507.21 : 1,143,104.12 = 497,228.57 : x
  2. Step 2: Convert to fraction form
    828,507.21/1,143,104.12 = 497,228.57/x
  3. Step 3: Cross multiply
    828,507.21x = 1,143,104.12 × 497,228.57
  4. Step 4: Simplify right side
    828,507.21x = 568,384,032,726.71
  5. Step 5: Solve for x
    x = 568,384,032,726.71/828,507.21
  6. Step 6: Final answer
    x = 686,033.90

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Double scale
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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.