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Finding the Fourth Proportional to 454,056.60, 681,230.70 and 201,239.40

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Solution

The fourth proportional to 454,056.60, 681,230.70 and 201,239.40 is: 301,923.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,056.60 : 681,230.70 = 201,239.40 : x
  2. Step 2: Convert to fraction form
    454,056.60/681,230.70 = 201,239.40/x
  3. Step 3: Cross multiply
    454,056.60x = 681,230.70 × 201,239.40
  4. Step 4: Simplify right side
    454,056.60x = 137,090,457,329.58
  5. Step 5: Solve for x
    x = 137,090,457,329.58/454,056.60
  6. Step 6: Final answer
    x = 301,923.72

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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.