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Finding the Fourth Proportional to 519,529.62, 778,605.53 and 266,799.90

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Solution

The fourth proportional to 519,529.62, 778,605.53 and 266,799.90 is: 399,846.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,529.62 : 778,605.53 = 266,799.90 : x
  2. Step 2: Convert to fraction form
    519,529.62/778,605.53 = 266,799.90/x
  3. Step 3: Cross multiply
    519,529.62x = 778,605.53 × 266,799.90
  4. Step 4: Simplify right side
    519,529.62x = 207,731,876,209.45
  5. Step 5: Solve for x
    x = 207,731,876,209.45/519,529.62
  6. Step 6: Final answer
    x = 399,846.07

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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.