Home / 923,778.88-1,275,377.60-633,866.72

Finding the Fourth Proportional to 923,778.88, 1,275,377.60 and 633,866.72

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Solution

The fourth proportional to 923,778.88, 1,275,377.60 and 633,866.72 is: 875,122.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,778.88 : 1,275,377.60 = 633,866.72 : x
  2. Step 2: Convert to fraction form
    923,778.88/1,275,377.60 = 633,866.72/x
  3. Step 3: Cross multiply
    923,778.88x = 1,275,377.60 × 633,866.72
  4. Step 4: Simplify right side
    923,778.88x = 808,419,411,281.25
  5. Step 5: Solve for x
    x = 808,419,411,281.25/923,778.88
  6. Step 6: Final answer
    x = 875,122.21

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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.