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Finding the Fourth Proportional to 647,999.55, 971,999.33 and 588,901.95

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Solution

The fourth proportional to 647,999.55, 971,999.33 and 588,901.95 is: 883,352.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,999.55 : 971,999.33 = 588,901.95 : x
  2. Step 2: Convert to fraction form
    647,999.55/971,999.33 = 588,901.95/x
  3. Step 3: Cross multiply
    647,999.55x = 971,999.33 × 588,901.95
  4. Step 4: Simplify right side
    647,999.55x = 572,412,297,891.18
  5. Step 5: Solve for x
    x = 572,412,297,891.18/647,999.55
  6. Step 6: Final answer
    x = 883,352.93

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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.