Home / 684,975.44-945,646.19-413,112.51

Finding the Fourth Proportional to 684,975.44, 945,646.19 and 413,112.51

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Solution

The fourth proportional to 684,975.44, 945,646.19 and 413,112.51 is: 570,324.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,975.44 : 945,646.19 = 413,112.51 : x
  2. Step 2: Convert to fraction form
    684,975.44/945,646.19 = 413,112.51/x
  3. Step 3: Cross multiply
    684,975.44x = 945,646.19 × 413,112.51
  4. Step 4: Simplify right side
    684,975.44x = 390,658,269,057.27
  5. Step 5: Solve for x
    x = 390,658,269,057.27/684,975.44
  6. Step 6: Final answer
    x = 570,324.50

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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.