Home / 771,976,823.61-1,065,336,244.62-419,552,832.81

Finding the Fourth Proportional to 771,976,823.61, 1,065,336,244.62 and 419,552,832.81

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Solution

The fourth proportional to 771,976,823.61, 1,065,336,244.62 and 419,552,832.81 is: 578,987,381.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,976,823.61 : 1,065,336,244.62 = 419,552,832.81 : x
  2. Step 2: Convert to fraction form
    771,976,823.61/1,065,336,244.62 = 419,552,832.81/x
  3. Step 3: Cross multiply
    771,976,823.61x = 1,065,336,244.62 × 419,552,832.81
  4. Step 4: Simplify right side
    771,976,823.61x = 446,964,839,325,488,128
  5. Step 5: Solve for x
    x = 446,964,839,325,488,128/771,976,823.61
  6. Step 6: Final answer
    x = 578,987,381.04

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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.