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Finding the Fourth Proportional to 358,572,703.80, 537,859,055.70 and 327,961,702.20

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Solution

The fourth proportional to 358,572,703.80, 537,859,055.70 and 327,961,702.20 is: 491,942,553.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,572,703.80 : 537,859,055.70 = 327,961,702.20 : x
  2. Step 2: Convert to fraction form
    358,572,703.80/537,859,055.70 = 327,961,702.20/x
  3. Step 3: Cross multiply
    358,572,703.80x = 537,859,055.70 × 327,961,702.20
  4. Step 4: Simplify right side
    358,572,703.80x = 176,397,171,451,056,608
  5. Step 5: Solve for x
    x = 176,397,171,451,056,608/358,572,703.80
  6. Step 6: Final answer
    x = 491,942,553.30

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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.