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Finding the Fourth Proportional to 559,872,993.70, 839,809,490.55 and 377,130,772.90

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Solution

The fourth proportional to 559,872,993.70, 839,809,490.55 and 377,130,772.90 is: 565,696,159.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,872,993.70 : 839,809,490.55 = 377,130,772.90 : x
  2. Step 2: Convert to fraction form
    559,872,993.70/839,809,490.55 = 377,130,772.90/x
  3. Step 3: Cross multiply
    559,872,993.70x = 839,809,490.55 × 377,130,772.90
  4. Step 4: Simplify right side
    559,872,993.70x = 316,718,002,259,876,736
  5. Step 5: Solve for x
    x = 316,718,002,259,876,736/559,872,993.70
  6. Step 6: Final answer
    x = 565,696,159.35

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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.