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Finding the Fourth Proportional to 559,872,606.80, 839,808,910.20 and 385,276,523.60

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Solution

The fourth proportional to 559,872,606.80, 839,808,910.20 and 385,276,523.60 is: 577,914,785.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,872,606.80 : 839,808,910.20 = 385,276,523.60 : x
  2. Step 2: Convert to fraction form
    559,872,606.80/839,808,910.20 = 385,276,523.60/x
  3. Step 3: Cross multiply
    559,872,606.80x = 839,808,910.20 × 385,276,523.60
  4. Step 4: Simplify right side
    559,872,606.80x = 323,558,657,410,160,640
  5. Step 5: Solve for x
    x = 323,558,657,410,160,640/559,872,606.80
  6. Step 6: Final answer
    x = 577,914,785.40

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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.