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Finding the Fourth Proportional to 663,057.81, 994,593.65 and 530,778.93

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Solution

The fourth proportional to 663,057.81, 994,593.65 and 530,778.93 is: 796,173.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,057.81 : 994,593.65 = 530,778.93 : x
  2. Step 2: Convert to fraction form
    663,057.81/994,593.65 = 530,778.93/x
  3. Step 3: Cross multiply
    663,057.81x = 994,593.65 × 530,778.93
  4. Step 4: Simplify right side
    663,057.81x = 527,909,354,658.74
  5. Step 5: Solve for x
    x = 527,909,354,658.74/663,057.81
  6. Step 6: Final answer
    x = 796,173.95

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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.