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Finding the Fourth Proportional to 343,248,211.80, 514,872,317.70 and 343,248,211.80

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Solution

The fourth proportional to 343,248,211.80, 514,872,317.70 and 343,248,211.80 is: 514,872,317.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,248,211.80 : 514,872,317.70 = 343,248,211.80 : x
  2. Step 2: Convert to fraction form
    343,248,211.80/514,872,317.70 = 343,248,211.80/x
  3. Step 3: Cross multiply
    343,248,211.80x = 514,872,317.70 × 343,248,211.80
  4. Step 4: Simplify right side
    343,248,211.80x = 176,729,002,355,846,496
  5. Step 5: Solve for x
    x = 176,729,002,355,846,496/343,248,211.80
  6. Step 6: Final answer
    x = 514,872,317.70

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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.