Home / 928,219.17-1,392,725.70-388,601.49

Finding the Fourth Proportional to 928,219.17, 1,392,725.70 and 388,601.49

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Solution

The fourth proportional to 928,219.17, 1,392,725.70 and 388,601.49 is: 583,068.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,219.17 : 1,392,725.70 = 388,601.49 : x
  2. Step 2: Convert to fraction form
    928,219.17/1,392,725.70 = 388,601.49/x
  3. Step 3: Cross multiply
    928,219.17x = 1,392,725.70 × 388,601.49
  4. Step 4: Simplify right side
    928,219.17x = 541,215,282,181.29
  5. Step 5: Solve for x
    x = 541,215,282,181.29/928,219.17
  6. Step 6: Final answer
    x = 583,068.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.