Home / 646,240.46-891,231.26-404,545.05

Finding the Fourth Proportional to 646,240.46, 891,231.26 and 404,545.05

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Solution

The fourth proportional to 646,240.46, 891,231.26 and 404,545.05 is: 557,908.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,240.46 : 891,231.26 = 404,545.05 : x
  2. Step 2: Convert to fraction form
    646,240.46/891,231.26 = 404,545.05/x
  3. Step 3: Cross multiply
    646,240.46x = 891,231.26 × 404,545.05
  4. Step 4: Simplify right side
    646,240.46x = 360,543,192,615.54
  5. Step 5: Solve for x
    x = 360,543,192,615.54/646,240.46
  6. Step 6: Final answer
    x = 557,908.73

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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.