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Finding the Fourth Proportional to 559,877,356.80, 839,816,035.20 and 253,179,475.20

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Solution

The fourth proportional to 559,877,356.80, 839,816,035.20 and 253,179,475.20 is: 379,769,212.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,877,356.80 : 839,816,035.20 = 253,179,475.20 : x
  2. Step 2: Convert to fraction form
    559,877,356.80/839,816,035.20 = 253,179,475.20/x
  3. Step 3: Cross multiply
    559,877,356.80x = 839,816,035.20 × 253,179,475.20
  4. Step 4: Simplify right side
    559,877,356.80x = 212,624,183,056,480,736
  5. Step 5: Solve for x
    x = 212,624,183,056,480,736/559,877,356.80
  6. Step 6: Final answer
    x = 379,769,212.80

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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.