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Finding the Fourth Proportional to 295,710.40, 443,857.20 and 146,119.60

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Solution

The fourth proportional to 295,710.40, 443,857.20 and 146,119.60 is: 219,323.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,710.40 : 443,857.20 = 146,119.60 : x
  2. Step 2: Convert to fraction form
    295,710.40/443,857.20 = 146,119.60/x
  3. Step 3: Cross multiply
    295,710.40x = 443,857.20 × 146,119.60
  4. Step 4: Simplify right side
    295,710.40x = 64,856,236,521.12
  5. Step 5: Solve for x
    x = 64,856,236,521.12/295,710.40
  6. Step 6: Final answer
    x = 219,323.49

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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.