Home / 922,347.75-1,272,839.90-519,939.75

Finding the Fourth Proportional to 922,347.75, 1,272,839.90 and 519,939.75

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Solution

The fourth proportional to 922,347.75, 1,272,839.90 and 519,939.75 is: 717,516.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,347.75 : 1,272,839.90 = 519,939.75 : x
  2. Step 2: Convert to fraction form
    922,347.75/1,272,839.90 = 519,939.75/x
  3. Step 3: Cross multiply
    922,347.75x = 1,272,839.90 × 519,939.75
  4. Step 4: Simplify right side
    922,347.75x = 661,800,056,796.33
  5. Step 5: Solve for x
    x = 661,800,056,796.33/922,347.75
  6. Step 6: Final answer
    x = 717,516.86

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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.