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Finding the Fourth Proportional to 294,210.90, 440,717.34 and 269,688.87

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Solution

The fourth proportional to 294,210.90, 440,717.34 and 269,688.87 is: 403,984.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,210.90 : 440,717.34 = 269,688.87 : x
  2. Step 2: Convert to fraction form
    294,210.90/440,717.34 = 269,688.87/x
  3. Step 3: Cross multiply
    294,210.90x = 440,717.34 × 269,688.87
  4. Step 4: Simplify right side
    294,210.90x = 118,856,561,414.01
  5. Step 5: Solve for x
    x = 118,856,561,414.01/294,210.90
  6. Step 6: Final answer
    x = 403,984.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.