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Finding the Fourth Proportional to 576,557,999.80, 864,836,999.70 and 571,183,228.60

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Solution

The fourth proportional to 576,557,999.80, 864,836,999.70 and 571,183,228.60 is: 856,774,842.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,557,999.80 : 864,836,999.70 = 571,183,228.60 : x
  2. Step 2: Convert to fraction form
    576,557,999.80/864,836,999.70 = 571,183,228.60/x
  3. Step 3: Cross multiply
    576,557,999.80x = 864,836,999.70 × 571,183,228.60
  4. Step 4: Simplify right side
    576,557,999.80x = 493,980,389,701,383,296
  5. Step 5: Solve for x
    x = 493,980,389,701,383,296/576,557,999.80
  6. Step 6: Final answer
    x = 856,774,842.90

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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.