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Finding the Fourth Proportional to 519,384.26, 711,553.10 and 499,961.88

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Solution

The fourth proportional to 519,384.26, 711,553.10 and 499,961.88 is: 684,944.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,384.26 : 711,553.10 = 499,961.88 : x
  2. Step 2: Convert to fraction form
    519,384.26/711,553.10 = 499,961.88/x
  3. Step 3: Cross multiply
    519,384.26x = 711,553.10 × 499,961.88
  4. Step 4: Simplify right side
    519,384.26x = 355,749,423,096.02
  5. Step 5: Solve for x
    x = 355,749,423,096.02/519,384.26
  6. Step 6: Final answer
    x = 684,944.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.