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Finding the Fourth Proportional to 299,411.60, 449,117.40 and 193,123.40

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Solution

The fourth proportional to 299,411.60, 449,117.40 and 193,123.40 is: 289,685.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,411.60 : 449,117.40 = 193,123.40 : x
  2. Step 2: Convert to fraction form
    299,411.60/449,117.40 = 193,123.40/x
  3. Step 3: Cross multiply
    299,411.60x = 449,117.40 × 193,123.40
  4. Step 4: Simplify right side
    299,411.60x = 86,735,079,287.16
  5. Step 5: Solve for x
    x = 86,735,079,287.16/299,411.60
  6. Step 6: Final answer
    x = 289,685.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.