Home / 691,981.90-954,935.62-386,058.34

Finding the Fourth Proportional to 691,981.90, 954,935.62 and 386,058.34

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Solution

The fourth proportional to 691,981.90, 954,935.62 and 386,058.34 is: 532,760.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,981.90 : 954,935.62 = 386,058.34 : x
  2. Step 2: Convert to fraction form
    691,981.90/954,935.62 = 386,058.34/x
  3. Step 3: Cross multiply
    691,981.90x = 954,935.62 × 386,058.34
  4. Step 4: Simplify right side
    691,981.90x = 368,660,856,911.59
  5. Step 5: Solve for x
    x = 368,660,856,911.59/691,981.90
  6. Step 6: Final answer
    x = 532,760.84

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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.