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Finding the Fourth Proportional to 587,240.40, 880,169.40 and 306,613.20

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Solution

The fourth proportional to 587,240.40, 880,169.40 and 306,613.20 is: 459,558.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,240.40 : 880,169.40 = 306,613.20 : x
  2. Step 2: Convert to fraction form
    587,240.40/880,169.40 = 306,613.20/x
  3. Step 3: Cross multiply
    587,240.40x = 880,169.40 × 306,613.20
  4. Step 4: Simplify right side
    587,240.40x = 269,871,556,276.08
  5. Step 5: Solve for x
    x = 269,871,556,276.08/587,240.40
  6. Step 6: Final answer
    x = 459,558.91

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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.