Home / 771,976,825.62-1,065,336,247.38-419,552,834.82

Finding the Fourth Proportional to 771,976,825.62, 1,065,336,247.38 and 419,552,834.82

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Solution

The fourth proportional to 771,976,825.62, 1,065,336,247.38 and 419,552,834.82 is: 578,987,383.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,976,825.62 : 1,065,336,247.38 = 419,552,834.82 : x
  2. Step 2: Convert to fraction form
    771,976,825.62/1,065,336,247.38 = 419,552,834.82/x
  3. Step 3: Cross multiply
    771,976,825.62x = 1,065,336,247.38 × 419,552,834.82
  4. Step 4: Simplify right side
    771,976,825.62x = 446,964,842,624,779,776
  5. Step 5: Solve for x
    x = 446,964,842,624,779,776/771,976,825.62
  6. Step 6: Final answer
    x = 578,987,383.81

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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.