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Finding the Fourth Proportional to 590,077,551.80, 885,116,327.70 and 317,979,759.80

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Solution

The fourth proportional to 590,077,551.80, 885,116,327.70 and 317,979,759.80 is: 476,969,639.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,077,551.80 : 885,116,327.70 = 317,979,759.80 : x
  2. Step 2: Convert to fraction form
    590,077,551.80/885,116,327.70 = 317,979,759.80/x
  3. Step 3: Cross multiply
    590,077,551.80x = 885,116,327.70 × 317,979,759.80
  4. Step 4: Simplify right side
    590,077,551.80x = 281,449,077,277,104,128
  5. Step 5: Solve for x
    x = 281,449,077,277,104,128/590,077,551.80
  6. Step 6: Final answer
    x = 476,969,639.70

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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.