Home / 4,920,809.70-7,372,357.20-4,212,221.70

Finding the Fourth Proportional to 4,920,809.70, 7,372,357.20 and 4,212,221.70

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Solution

The fourth proportional to 4,920,809.70, 7,372,357.20 and 4,212,221.70 is: 6,310,750.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920,809.70 : 7,372,357.20 = 4,212,221.70 : x
  2. Step 2: Convert to fraction form
    4,920,809.70/7,372,357.20 = 4,212,221.70/x
  3. Step 3: Cross multiply
    4,920,809.70x = 7,372,357.20 × 4,212,221.70
  4. Step 4: Simplify right side
    4,920,809.70x = 31,054,002,977,991.24
  5. Step 5: Solve for x
    x = 31,054,002,977,991.24/4,920,809.70
  6. Step 6: Final answer
    x = 6,310,750.64

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1.5x scale

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.