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Finding the Fourth Proportional to 347,772.40, 522,004.20 and 170,479.60

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Solution

The fourth proportional to 347,772.40, 522,004.20 and 170,479.60 is: 255,888.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,772.40 : 522,004.20 = 170,479.60 : x
  2. Step 2: Convert to fraction form
    347,772.40/522,004.20 = 170,479.60/x
  3. Step 3: Cross multiply
    347,772.40x = 522,004.20 × 170,479.60
  4. Step 4: Simplify right side
    347,772.40x = 88,991,067,214.32
  5. Step 5: Solve for x
    x = 88,991,067,214.32/347,772.40
  6. Step 6: Final answer
    x = 255,888.81

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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.