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Finding the Fourth Proportional to 559,873,523.80, 839,810,285.70 and 515,657,632.60

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Solution

The fourth proportional to 559,873,523.80, 839,810,285.70 and 515,657,632.60 is: 773,486,448.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,873,523.80 : 839,810,285.70 = 515,657,632.60 : x
  2. Step 2: Convert to fraction form
    559,873,523.80/839,810,285.70 = 515,657,632.60/x
  3. Step 3: Cross multiply
    559,873,523.80x = 839,810,285.70 × 515,657,632.60
  4. Step 4: Simplify right side
    559,873,523.80x = 433,054,583,757,191,680
  5. Step 5: Solve for x
    x = 433,054,583,757,191,680/559,873,523.80
  6. Step 6: Final answer
    x = 773,486,448.90

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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.