Home / 1,385,334.65-1,911,743.66-773,497.79

Finding the Fourth Proportional to 1,385,334.65, 1,911,743.66 and 773,497.79

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Solution

The fourth proportional to 1,385,334.65, 1,911,743.66 and 773,497.79 is: 1,067,416.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,334.65 : 1,911,743.66 = 773,497.79 : x
  2. Step 2: Convert to fraction form
    1,385,334.65/1,911,743.66 = 773,497.79/x
  3. Step 3: Cross multiply
    1,385,334.65x = 1,911,743.66 × 773,497.79
  4. Step 4: Simplify right side
    1,385,334.65x = 1,478,729,482,630.30
  5. Step 5: Solve for x
    x = 1,478,729,482,630.30/1,385,334.65
  6. Step 6: Final answer
    x = 1,067,416.81

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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.