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Finding the Fourth Proportional to 288,113.02, 397,585.54 and 159,048.72

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Solution

The fourth proportional to 288,113.02, 397,585.54 and 159,048.72 is: 219,481.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,113.02 : 397,585.54 = 159,048.72 : x
  2. Step 2: Convert to fraction form
    288,113.02/397,585.54 = 159,048.72/x
  3. Step 3: Cross multiply
    288,113.02x = 397,585.54 × 159,048.72
  4. Step 4: Simplify right side
    288,113.02x = 63,235,471,227.51
  5. Step 5: Solve for x
    x = 63,235,471,227.51/288,113.02
  6. Step 6: Final answer
    x = 219,481.48

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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.