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Finding the Fourth Proportional to 519,016.91, 716,242.16 and 292,660.79

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Solution

The fourth proportional to 519,016.91, 716,242.16 and 292,660.79 is: 403,871.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,016.91 : 716,242.16 = 292,660.79 : x
  2. Step 2: Convert to fraction form
    519,016.91/716,242.16 = 292,660.79/x
  3. Step 3: Cross multiply
    519,016.91x = 716,242.16 × 292,660.79
  4. Step 4: Simplify right side
    519,016.91x = 209,615,993,527.35
  5. Step 5: Solve for x
    x = 209,615,993,527.35/519,016.91
  6. Step 6: Final answer
    x = 403,871.23

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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.