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Finding the Fourth Proportional to 344,000.20, 514,979.70 and 255,645.40

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Solution

The fourth proportional to 344,000.20, 514,979.70 and 255,645.40 is: 382,709.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,000.20 : 514,979.70 = 255,645.40 : x
  2. Step 2: Convert to fraction form
    344,000.20/514,979.70 = 255,645.40/x
  3. Step 3: Cross multiply
    344,000.20x = 514,979.70 × 255,645.40
  4. Step 4: Simplify right side
    344,000.20x = 131,652,191,398.38
  5. Step 5: Solve for x
    x = 131,652,191,398.38/344,000.20
  6. Step 6: Final answer
    x = 382,709.64

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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.