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Finding the Fourth Proportional to 288,924.63, 398,717.54 and 161,600.19

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Solution

The fourth proportional to 288,924.63, 398,717.54 and 161,600.19 is: 223,009.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,924.63 : 398,717.54 = 161,600.19 : x
  2. Step 2: Convert to fraction form
    288,924.63/398,717.54 = 161,600.19/x
  3. Step 3: Cross multiply
    288,924.63x = 398,717.54 × 161,600.19
  4. Step 4: Simplify right side
    288,924.63x = 64,432,830,220.33
  5. Step 5: Solve for x
    x = 64,432,830,220.33/288,924.63
  6. Step 6: Final answer
    x = 223,009.13

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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.