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Finding the Fourth Proportional to 301,228.30, 416,127.60 and 240,719.68

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Solution

The fourth proportional to 301,228.30, 416,127.60 and 240,719.68 is: 332,538.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,228.30 : 416,127.60 = 240,719.68 : x
  2. Step 2: Convert to fraction form
    301,228.30/416,127.60 = 240,719.68/x
  3. Step 3: Cross multiply
    301,228.30x = 416,127.60 × 240,719.68
  4. Step 4: Simplify right side
    301,228.30x = 100,170,102,711.17
  5. Step 5: Solve for x
    x = 100,170,102,711.17/301,228.30
  6. Step 6: Final answer
    x = 332,538.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.