Home / 911,306.59-1,257,578.73-503,399.66

Finding the Fourth Proportional to 911,306.59, 1,257,578.73 and 503,399.66

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Solution

The fourth proportional to 911,306.59, 1,257,578.73 and 503,399.66 is: 694,678.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,306.59 : 1,257,578.73 = 503,399.66 : x
  2. Step 2: Convert to fraction form
    911,306.59/1,257,578.73 = 503,399.66/x
  3. Step 3: Cross multiply
    911,306.59x = 1,257,578.73 × 503,399.66
  4. Step 4: Simplify right side
    911,306.59x = 633,064,705,105.23
  5. Step 5: Solve for x
    x = 633,064,705,105.23/911,306.59
  6. Step 6: Final answer
    x = 694,678.07

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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.