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Finding the Fourth Proportional to 476,806.08, 715,834.56 and 319,737.60

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Solution

The fourth proportional to 476,806.08, 715,834.56 and 319,737.60 is: 480,025.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,806.08 : 715,834.56 = 319,737.60 : x
  2. Step 2: Convert to fraction form
    476,806.08/715,834.56 = 319,737.60/x
  3. Step 3: Cross multiply
    476,806.08x = 715,834.56 × 319,737.60
  4. Step 4: Simplify right side
    476,806.08x = 228,879,224,211.46
  5. Step 5: Solve for x
    x = 228,879,224,211.46/476,806.08
  6. Step 6: Final answer
    x = 480,025.81

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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.