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Finding the Fourth Proportional to 519,940.70, 779,911.05 and 496,612.70

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Solution

The fourth proportional to 519,940.70, 779,911.05 and 496,612.70 is: 744,919.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,940.70 : 779,911.05 = 496,612.70 : x
  2. Step 2: Convert to fraction form
    519,940.70/779,911.05 = 496,612.70/x
  3. Step 3: Cross multiply
    519,940.70x = 779,911.05 × 496,612.70
  4. Step 4: Simplify right side
    519,940.70x = 387,313,732,300.34
  5. Step 5: Solve for x
    x = 387,313,732,300.34/519,940.70
  6. Step 6: Final answer
    x = 744,919.05

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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.