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Finding the Fourth Proportional to 452,574.57, 678,861.84 and 115,615.96

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Solution

The fourth proportional to 452,574.57, 678,861.84 and 115,615.96 is: 173,423.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,574.57 : 678,861.84 = 115,615.96 : x
  2. Step 2: Convert to fraction form
    452,574.57/678,861.84 = 115,615.96/x
  3. Step 3: Cross multiply
    452,574.57x = 678,861.84 × 115,615.96
  4. Step 4: Simplify right side
    452,574.57x = 78,487,262,075.37
  5. Step 5: Solve for x
    x = 78,487,262,075.37/452,574.57
  6. Step 6: Final answer
    x = 173,423.93

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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.