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Finding the Fourth Proportional to 344,000.80, 515,563.80 and 306,384.40

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Solution

The fourth proportional to 344,000.80, 515,563.80 and 306,384.40 is: 459,187.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,000.80 : 515,563.80 = 306,384.40 : x
  2. Step 2: Convert to fraction form
    344,000.80/515,563.80 = 306,384.40/x
  3. Step 3: Cross multiply
    344,000.80x = 515,563.80 × 306,384.40
  4. Step 4: Simplify right side
    344,000.80x = 157,960,705,524.72
  5. Step 5: Solve for x
    x = 157,960,705,524.72/344,000.80
  6. Step 6: Final answer
    x = 459,187.03

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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.