Home / 691,943.10-954,881.85-386,019.46

Finding the Fourth Proportional to 691,943.10, 954,881.85 and 386,019.46

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Solution

The fourth proportional to 691,943.10, 954,881.85 and 386,019.46 is: 532,707.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,943.10 : 954,881.85 = 386,019.46 : x
  2. Step 2: Convert to fraction form
    691,943.10/954,881.85 = 386,019.46/x
  3. Step 3: Cross multiply
    691,943.10x = 954,881.85 × 386,019.46
  4. Step 4: Simplify right side
    691,943.10x = 368,602,976,100.80
  5. Step 5: Solve for x
    x = 368,602,976,100.80/691,943.10
  6. Step 6: Final answer
    x = 532,707.06

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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.