Home / 515,613.24-711,386.82-300,601.17

Finding the Fourth Proportional to 515,613.24, 711,386.82 and 300,601.17

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Solution

The fourth proportional to 515,613.24, 711,386.82 and 300,601.17 is: 414,736.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,613.24 : 711,386.82 = 300,601.17 : x
  2. Step 2: Convert to fraction form
    515,613.24/711,386.82 = 300,601.17/x
  3. Step 3: Cross multiply
    515,613.24x = 711,386.82 × 300,601.17
  4. Step 4: Simplify right side
    515,613.24x = 213,843,710,414.58
  5. Step 5: Solve for x
    x = 213,843,710,414.58/515,613.24
  6. Step 6: Final answer
    x = 414,736.65

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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.