Home / 691,942.10-954,880.47-386,018.46

Finding the Fourth Proportional to 691,942.10, 954,880.47 and 386,018.46

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Solution

The fourth proportional to 691,942.10, 954,880.47 and 386,018.46 is: 532,705.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,942.10 : 954,880.47 = 386,018.46 : x
  2. Step 2: Convert to fraction form
    691,942.10/954,880.47 = 386,018.46/x
  3. Step 3: Cross multiply
    691,942.10x = 954,880.47 × 386,018.46
  4. Step 4: Simplify right side
    691,942.10x = 368,601,488,513.48
  5. Step 5: Solve for x
    x = 368,601,488,513.48/691,942.10
  6. Step 6: Final answer
    x = 532,705.69

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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.