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Finding the Fourth Proportional to 295,275.40, 442,913.10 and 170,470.60

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Solution

The fourth proportional to 295,275.40, 442,913.10 and 170,470.60 is: 255,705.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,275.40 : 442,913.10 = 170,470.60 : x
  2. Step 2: Convert to fraction form
    295,275.40/442,913.10 = 170,470.60/x
  3. Step 3: Cross multiply
    295,275.40x = 442,913.10 × 170,470.60
  4. Step 4: Simplify right side
    295,275.40x = 75,503,661,904.86
  5. Step 5: Solve for x
    x = 75,503,661,904.86/295,275.40
  6. Step 6: Final answer
    x = 255,705.90

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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.