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Finding the Fourth Proportional to 576,411.10, 863,515.05 and 310,083.10

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Solution

The fourth proportional to 576,411.10, 863,515.05 and 310,083.10 is: 464,532.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,411.10 : 863,515.05 = 310,083.10 : x
  2. Step 2: Convert to fraction form
    576,411.10/863,515.05 = 310,083.10/x
  3. Step 3: Cross multiply
    576,411.10x = 863,515.05 × 310,083.10
  4. Step 4: Simplify right side
    576,411.10x = 267,761,423,600.66
  5. Step 5: Solve for x
    x = 267,761,423,600.66/576,411.10
  6. Step 6: Final answer
    x = 464,532.04

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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.