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Finding the Fourth Proportional to 354,728.69, 489,535.92 and 193,594.04

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Solution

The fourth proportional to 354,728.69, 489,535.92 and 193,594.04 is: 267,165.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,728.69 : 489,535.92 = 193,594.04 : x
  2. Step 2: Convert to fraction form
    354,728.69/489,535.92 = 193,594.04/x
  3. Step 3: Cross multiply
    354,728.69x = 489,535.92 × 193,594.04
  4. Step 4: Simplify right side
    354,728.69x = 94,771,236,477.92
  5. Step 5: Solve for x
    x = 94,771,236,477.92/354,728.69
  6. Step 6: Final answer
    x = 267,165.41

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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.