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Finding the Fourth Proportional to 519,822.84, 779,296.86 and 253,446.24

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Solution

The fourth proportional to 519,822.84, 779,296.86 and 253,446.24 is: 379,956.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,822.84 : 779,296.86 = 253,446.24 : x
  2. Step 2: Convert to fraction form
    519,822.84/779,296.86 = 253,446.24/x
  3. Step 3: Cross multiply
    519,822.84x = 779,296.86 × 253,446.24
  4. Step 4: Simplify right side
    519,822.84x = 197,509,859,010.81
  5. Step 5: Solve for x
    x = 197,509,859,010.81/519,822.84
  6. Step 6: Final answer
    x = 379,956.10

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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.