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Finding the Fourth Proportional to 452,571.71, 678,857.57 and 115,613.11

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Solution

The fourth proportional to 452,571.71, 678,857.57 and 115,613.11 is: 173,419.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,571.71 : 678,857.57 = 115,613.11 : x
  2. Step 2: Convert to fraction form
    452,571.71/678,857.57 = 115,613.11/x
  3. Step 3: Cross multiply
    452,571.71x = 678,857.57 × 115,613.11
  4. Step 4: Simplify right side
    452,571.71x = 78,484,831,520.45
  5. Step 5: Solve for x
    x = 78,484,831,520.45/452,571.71
  6. Step 6: Final answer
    x = 173,419.66

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Similar ratio
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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.