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Finding the Fourth Proportional to 493,651.80, 740,477.70 and 322,409.70

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Solution

The fourth proportional to 493,651.80, 740,477.70 and 322,409.70 is: 483,614.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,651.80 : 740,477.70 = 322,409.70 : x
  2. Step 2: Convert to fraction form
    493,651.80/740,477.70 = 322,409.70/x
  3. Step 3: Cross multiply
    493,651.80x = 740,477.70 × 322,409.70
  4. Step 4: Simplify right side
    493,651.80x = 238,737,193,113.69
  5. Step 5: Solve for x
    x = 238,737,193,113.69/493,651.80
  6. Step 6: Final answer
    x = 483,614.55

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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.