Home / 691,613.82-954,665.19-405,226.62

Finding the Fourth Proportional to 691,613.82, 954,665.19 and 405,226.62

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Solution

The fourth proportional to 691,613.82, 954,665.19 and 405,226.62 is: 559,352.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,613.82 : 954,665.19 = 405,226.62 : x
  2. Step 2: Convert to fraction form
    691,613.82/954,665.19 = 405,226.62/x
  3. Step 3: Cross multiply
    691,613.82x = 954,665.19 × 405,226.62
  4. Step 4: Simplify right side
    691,613.82x = 386,855,748,175.36
  5. Step 5: Solve for x
    x = 386,855,748,175.36/691,613.82
  6. Step 6: Final answer
    x = 559,352.25

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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.