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Finding the Fourth Proportional to 452,416.58, 678,624.42 and 115,457.24

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Solution

The fourth proportional to 452,416.58, 678,624.42 and 115,457.24 is: 173,185.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,416.58 : 678,624.42 = 115,457.24 : x
  2. Step 2: Convert to fraction form
    452,416.58/678,624.42 = 115,457.24/x
  3. Step 3: Cross multiply
    452,416.58x = 678,624.42 × 115,457.24
  4. Step 4: Simplify right side
    452,416.58x = 78,352,102,529.80
  5. Step 5: Solve for x
    x = 78,352,102,529.80/452,416.58
  6. Step 6: Final answer
    x = 173,185.75

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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.