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Finding the Fourth Proportional to 351,487,009.80, 527,230,514.70 and 351,487,009.80

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Solution

The fourth proportional to 351,487,009.80, 527,230,514.70 and 351,487,009.80 is: 527,230,514.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,487,009.80 : 527,230,514.70 = 351,487,009.80 : x
  2. Step 2: Convert to fraction form
    351,487,009.80/527,230,514.70 = 351,487,009.80/x
  3. Step 3: Cross multiply
    351,487,009.80x = 527,230,514.70 × 351,487,009.80
  4. Step 4: Simplify right side
    351,487,009.80x = 185,314,677,087,217,952
  5. Step 5: Solve for x
    x = 185,314,677,087,217,952/351,487,009.80
  6. Step 6: Final answer
    x = 527,230,514.70

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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.