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Finding the Fourth Proportional to 590,071,999.80, 885,107,999.70 and 317,974,207.80

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Solution

The fourth proportional to 590,071,999.80, 885,107,999.70 and 317,974,207.80 is: 476,961,311.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,071,999.80 : 885,107,999.70 = 317,974,207.80 : x
  2. Step 2: Convert to fraction form
    590,071,999.80/885,107,999.70 = 317,974,207.80/x
  3. Step 3: Cross multiply
    590,071,999.80x = 885,107,999.70 × 317,974,207.80
  4. Step 4: Simplify right side
    590,071,999.80x = 281,441,515,022,050,176
  5. Step 5: Solve for x
    x = 281,441,515,022,050,176/590,071,999.80
  6. Step 6: Final answer
    x = 476,961,311.70

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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.