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Finding the Fourth Proportional to 452,634.72, 678,952.99 and 168,387.60

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Solution

The fourth proportional to 452,634.72, 678,952.99 and 168,387.60 is: 252,581.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,634.72 : 678,952.99 = 168,387.60 : x
  2. Step 2: Convert to fraction form
    452,634.72/678,952.99 = 168,387.60/x
  3. Step 3: Cross multiply
    452,634.72x = 678,952.99 × 168,387.60
  4. Step 4: Simplify right side
    452,634.72x = 114,327,264,498.92
  5. Step 5: Solve for x
    x = 114,327,264,498.92/452,634.72
  6. Step 6: Final answer
    x = 252,581.74

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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.