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Finding the Fourth Proportional to 587,319.70, 880,979.55 and 410,172.70

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Solution

The fourth proportional to 587,319.70, 880,979.55 and 410,172.70 is: 615,259.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,319.70 : 880,979.55 = 410,172.70 : x
  2. Step 2: Convert to fraction form
    587,319.70/880,979.55 = 410,172.70/x
  3. Step 3: Cross multiply
    587,319.70x = 880,979.55 × 410,172.70
  4. Step 4: Simplify right side
    587,319.70x = 361,353,760,668.29
  5. Step 5: Solve for x
    x = 361,353,760,668.29/587,319.70
  6. Step 6: Final answer
    x = 615,259.05

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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.