Home / 733,247,234.76-1,011,900,361.38-398,739,321.32

Finding the Fourth Proportional to 733,247,234.76, 1,011,900,361.38 and 398,739,321.32

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Solution

The fourth proportional to 733,247,234.76, 1,011,900,361.38 and 398,739,321.32 is: 550,270,692.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    733,247,234.76 : 1,011,900,361.38 = 398,739,321.32 : x
  2. Step 2: Convert to fraction form
    733,247,234.76/1,011,900,361.38 = 398,739,321.32/x
  3. Step 3: Cross multiply
    733,247,234.76x = 1,011,900,361.38 × 398,739,321.32
  4. Step 4: Simplify right side
    733,247,234.76x = 403,484,463,340,123,904
  5. Step 5: Solve for x
    x = 403,484,463,340,123,904/733,247,234.76
  6. Step 6: Final answer
    x = 550,270,692.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.