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Finding the Fourth Proportional to 409,556.64, 614,293.38 and 109,998.30

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Solution

The fourth proportional to 409,556.64, 614,293.38 and 109,998.30 is: 164,986.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,556.64 : 614,293.38 = 109,998.30 : x
  2. Step 2: Convert to fraction form
    409,556.64/614,293.38 = 109,998.30/x
  3. Step 3: Cross multiply
    409,556.64x = 614,293.38 × 109,998.30
  4. Step 4: Simplify right side
    409,556.64x = 67,571,227,501.25
  5. Step 5: Solve for x
    x = 67,571,227,501.25/409,556.64
  6. Step 6: Final answer
    x = 164,986.28

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1.5x scale

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.