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Finding the Fourth Proportional to 296,510.88, 409,185.18 and 160,545.72

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Solution

The fourth proportional to 296,510.88, 409,185.18 and 160,545.72 is: 221,553.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,510.88 : 409,185.18 = 160,545.72 : x
  2. Step 2: Convert to fraction form
    296,510.88/409,185.18 = 160,545.72/x
  3. Step 3: Cross multiply
    296,510.88x = 409,185.18 × 160,545.72
  4. Step 4: Simplify right side
    296,510.88x = 65,692,929,336.43
  5. Step 5: Solve for x
    x = 65,692,929,336.43/296,510.88
  6. Step 6: Final answer
    x = 221,553.18

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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.