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Finding the Fourth Proportional to 519,649.88, 778,846.98 and 253,010.84

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Solution

The fourth proportional to 519,649.88, 778,846.98 and 253,010.84 is: 379,210.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,649.88 : 778,846.98 = 253,010.84 : x
  2. Step 2: Convert to fraction form
    519,649.88/778,846.98 = 253,010.84/x
  3. Step 3: Cross multiply
    519,649.88x = 778,846.98 × 253,010.84
  4. Step 4: Simplify right side
    519,649.88x = 197,056,728,641.26
  5. Step 5: Solve for x
    x = 197,056,728,641.26/519,649.88
  6. Step 6: Final answer
    x = 379,210.57

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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.