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Finding the Fourth Proportional to 367,871.76, 507,662.52 and 215,015.04

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Solution

The fourth proportional to 367,871.76, 507,662.52 and 215,015.04 is: 296,720.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,871.76 : 507,662.52 = 215,015.04 : x
  2. Step 2: Convert to fraction form
    367,871.76/507,662.52 = 215,015.04/x
  3. Step 3: Cross multiply
    367,871.76x = 507,662.52 × 215,015.04
  4. Step 4: Simplify right side
    367,871.76x = 109,155,077,044.30
  5. Step 5: Solve for x
    x = 109,155,077,044.30/367,871.76
  6. Step 6: Final answer
    x = 296,720.46

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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.