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Finding the Fourth Proportional to 296,611.02, 409,321.15 and 160,641.86

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Solution

The fourth proportional to 296,611.02, 409,321.15 and 160,641.86 is: 221,684.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,611.02 : 409,321.15 = 160,641.86 : x
  2. Step 2: Convert to fraction form
    296,611.02/409,321.15 = 160,641.86/x
  3. Step 3: Cross multiply
    296,611.02x = 409,321.15 × 160,641.86
  4. Step 4: Simplify right side
    296,611.02x = 65,754,108,425.13
  5. Step 5: Solve for x
    x = 65,754,108,425.13/296,611.02
  6. Step 6: Final answer
    x = 221,684.64

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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.