Home / 687,849.22-949,233.90-381,926.26

Finding the Fourth Proportional to 687,849.22, 949,233.90 and 381,926.26

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Solution

The fourth proportional to 687,849.22, 949,233.90 and 381,926.26 is: 527,059.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,849.22 : 949,233.90 = 381,926.26 : x
  2. Step 2: Convert to fraction form
    687,849.22/949,233.90 = 381,926.26/x
  3. Step 3: Cross multiply
    687,849.22x = 949,233.90 × 381,926.26
  4. Step 4: Simplify right side
    687,849.22x = 362,537,353,292.21
  5. Step 5: Solve for x
    x = 362,537,353,292.21/687,849.22
  6. Step 6: Final answer
    x = 527,059.34

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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.