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Finding the Fourth Proportional to 370,969.76, 511,429.20 and 248,414.24

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Solution

The fourth proportional to 370,969.76, 511,429.20 and 248,414.24 is: 342,470.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,969.76 : 511,429.20 = 248,414.24 : x
  2. Step 2: Convert to fraction form
    370,969.76/511,429.20 = 248,414.24/x
  3. Step 3: Cross multiply
    370,969.76x = 511,429.20 × 248,414.24
  4. Step 4: Simplify right side
    370,969.76x = 127,046,296,031.81
  5. Step 5: Solve for x
    x = 127,046,296,031.81/370,969.76
  6. Step 6: Final answer
    x = 342,470.76

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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.