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Finding the Fourth Proportional to 295,217.70, 442,255.64 and 247,263.40

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Solution

The fourth proportional to 295,217.70, 442,255.64 and 247,263.40 is: 370,416.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,217.70 : 442,255.64 = 247,263.40 : x
  2. Step 2: Convert to fraction form
    295,217.70/442,255.64 = 247,263.40/x
  3. Step 3: Cross multiply
    295,217.70x = 442,255.64 × 247,263.40
  4. Step 4: Simplify right side
    295,217.70x = 109,353,632,532.08
  5. Step 5: Solve for x
    x = 109,353,632,532.08/295,217.70
  6. Step 6: Final answer
    x = 370,416.93

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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.