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Finding the Fourth Proportional to 334,679,991.90, 502,019,987.85 and 334,679,991.90

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Solution

The fourth proportional to 334,679,991.90, 502,019,987.85 and 334,679,991.90 is: 502,019,987.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,679,991.90 : 502,019,987.85 = 334,679,991.90 : x
  2. Step 2: Convert to fraction form
    334,679,991.90/502,019,987.85 = 334,679,991.90/x
  3. Step 3: Cross multiply
    334,679,991.90x = 502,019,987.85 × 334,679,991.90
  4. Step 4: Simplify right side
    334,679,991.90x = 168,016,045,467,276,096
  5. Step 5: Solve for x
    x = 168,016,045,467,276,096/334,679,991.90
  6. Step 6: Final answer
    x = 502,019,987.85

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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.