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Finding the Fourth Proportional to 504,952,944.80, 756,153,958.80 and 331,490,602.40

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Solution

The fourth proportional to 504,952,944.80, 756,153,958.80 and 331,490,602.40 is: 496,398,592.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,952,944.80 : 756,153,958.80 = 331,490,602.40 : x
  2. Step 2: Convert to fraction form
    504,952,944.80/756,153,958.80 = 331,490,602.40/x
  3. Step 3: Cross multiply
    504,952,944.80x = 756,153,958.80 × 331,490,602.40
  4. Step 4: Simplify right side
    504,952,944.80x = 250,657,931,309,756,736
  5. Step 5: Solve for x
    x = 250,657,931,309,756,736/504,952,944.80
  6. Step 6: Final answer
    x = 496,398,592.96

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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.