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Finding the Fourth Proportional to 296,240.40, 408,811.52 and 160,274.40

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Solution

The fourth proportional to 296,240.40, 408,811.52 and 160,274.40 is: 221,178.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,240.40 : 408,811.52 = 160,274.40 : x
  2. Step 2: Convert to fraction form
    296,240.40/408,811.52 = 160,274.40/x
  3. Step 3: Cross multiply
    296,240.40x = 408,811.52 × 160,274.40
  4. Step 4: Simplify right side
    296,240.40x = 65,522,020,279.72
  5. Step 5: Solve for x
    x = 65,522,020,279.72/296,240.40
  6. Step 6: Final answer
    x = 221,178.54

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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.