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Finding the Fourth Proportional to 519,616.80, 779,425.20 and 504,064.80

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Solution

The fourth proportional to 519,616.80, 779,425.20 and 504,064.80 is: 756,097.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,616.80 : 779,425.20 = 504,064.80 : x
  2. Step 2: Convert to fraction form
    519,616.80/779,425.20 = 504,064.80/x
  3. Step 3: Cross multiply
    519,616.80x = 779,425.20 × 504,064.80
  4. Step 4: Simplify right side
    519,616.80x = 392,880,807,552.96
  5. Step 5: Solve for x
    x = 392,880,807,552.96/519,616.80
  6. Step 6: Final answer
    x = 756,097.20

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Double scale
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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.