Home / 819,653.65-1,131,123.20-452,122.59

Finding the Fourth Proportional to 819,653.65, 1,131,123.20 and 452,122.59

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Solution

The fourth proportional to 819,653.65, 1,131,123.20 and 452,122.59 is: 623,929.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,653.65 : 1,131,123.20 = 452,122.59 : x
  2. Step 2: Convert to fraction form
    819,653.65/1,131,123.20 = 452,122.59/x
  3. Step 3: Cross multiply
    819,653.65x = 1,131,123.20 × 452,122.59
  4. Step 4: Simplify right side
    819,653.65x = 511,406,350,793.09
  5. Step 5: Solve for x
    x = 511,406,350,793.09/819,653.65
  6. Step 6: Final answer
    x = 623,929.82

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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.