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Finding the Fourth Proportional to 296,806.40, 409,734.70 and 169,457.40

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Solution

The fourth proportional to 296,806.40, 409,734.70 and 169,457.40 is: 233,932.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,806.40 : 409,734.70 = 169,457.40 : x
  2. Step 2: Convert to fraction form
    296,806.40/409,734.70 = 169,457.40/x
  3. Step 3: Cross multiply
    296,806.40x = 409,734.70 × 169,457.40
  4. Step 4: Simplify right side
    296,806.40x = 69,432,576,951.78
  5. Step 5: Solve for x
    x = 69,432,576,951.78/296,806.40
  6. Step 6: Final answer
    x = 233,932.21

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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.