Home / 687,928.34-949,309.17-382,024.11

Finding the Fourth Proportional to 687,928.34, 949,309.17 and 382,024.11

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Solution

The fourth proportional to 687,928.34, 949,309.17 and 382,024.11 is: 527,175.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,928.34 : 949,309.17 = 382,024.11 : x
  2. Step 2: Convert to fraction form
    687,928.34/949,309.17 = 382,024.11/x
  3. Step 3: Cross multiply
    687,928.34x = 949,309.17 × 382,024.11
  4. Step 4: Simplify right side
    687,928.34x = 362,658,990,784.09
  5. Step 5: Solve for x
    x = 362,658,990,784.09/687,928.34
  6. Step 6: Final answer
    x = 527,175.54

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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.