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Finding the Fourth Proportional to 576,479.76, 865,244.37 and 306,834.27

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Solution

The fourth proportional to 576,479.76, 865,244.37 and 306,834.27 is: 460,530.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,479.76 : 865,244.37 = 306,834.27 : x
  2. Step 2: Convert to fraction form
    576,479.76/865,244.37 = 306,834.27/x
  3. Step 3: Cross multiply
    576,479.76x = 865,244.37 × 306,834.27
  4. Step 4: Simplify right side
    576,479.76x = 265,486,624,640.56
  5. Step 5: Solve for x
    x = 265,486,624,640.56/576,479.76
  6. Step 6: Final answer
    x = 460,530.70

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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.