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Finding the Fourth Proportional to 609,191,699.76, 839,872,585.08 and 484,161,395.76

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Solution

The fourth proportional to 609,191,699.76, 839,872,585.08 and 484,161,395.76 is: 667,497,412.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,191,699.76 : 839,872,585.08 = 484,161,395.76 : x
  2. Step 2: Convert to fraction form
    609,191,699.76/839,872,585.08 = 484,161,395.76/x
  3. Step 3: Cross multiply
    609,191,699.76x = 839,872,585.08 × 484,161,395.76
  4. Step 4: Simplify right side
    609,191,699.76x = 406,633,883,052,892,160
  5. Step 5: Solve for x
    x = 406,633,883,052,892,160/609,191,699.76
  6. Step 6: Final answer
    x = 667,497,412.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.