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Finding the Fourth Proportional to 519,251.40, 778,877.10 and 341,958.60

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Solution

The fourth proportional to 519,251.40, 778,877.10 and 341,958.60 is: 512,937.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,251.40 : 778,877.10 = 341,958.60 : x
  2. Step 2: Convert to fraction form
    519,251.40/778,877.10 = 341,958.60/x
  3. Step 3: Cross multiply
    519,251.40x = 778,877.10 × 341,958.60
  4. Step 4: Simplify right side
    519,251.40x = 266,343,722,688.06
  5. Step 5: Solve for x
    x = 266,343,722,688.06/519,251.40
  6. Step 6: Final answer
    x = 512,937.90

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Similar ratio
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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.