Home / 472,393,211.80-708,589,817.70-432,216,272.20

Finding the Fourth Proportional to 472,393,211.80, 708,589,817.70 and 432,216,272.20

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Solution

The fourth proportional to 472,393,211.80, 708,589,817.70 and 432,216,272.20 is: 648,324,408.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,393,211.80 : 708,589,817.70 = 432,216,272.20 : x
  2. Step 2: Convert to fraction form
    472,393,211.80/708,589,817.70 = 432,216,272.20/x
  3. Step 3: Cross multiply
    472,393,211.80x = 708,589,817.70 × 432,216,272.20
  4. Step 4: Simplify right side
    472,393,211.80x = 306,264,049,525,171,584
  5. Step 5: Solve for x
    x = 306,264,049,525,171,584/472,393,211.80
  6. Step 6: Final answer
    x = 648,324,408.30

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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.