Home / 862,101.78-1,293,072.86-406,588.56

Finding the Fourth Proportional to 862,101.78, 1,293,072.86 and 406,588.56

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Solution

The fourth proportional to 862,101.78, 1,293,072.86 and 406,588.56 is: 609,845.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,101.78 : 1,293,072.86 = 406,588.56 : x
  2. Step 2: Convert to fraction form
    862,101.78/1,293,072.86 = 406,588.56/x
  3. Step 3: Cross multiply
    862,101.78x = 1,293,072.86 × 406,588.56
  4. Step 4: Simplify right side
    862,101.78x = 525,748,632,122.48
  5. Step 5: Solve for x
    x = 525,748,632,122.48/862,101.78
  6. Step 6: Final answer
    x = 609,845.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.