Home / 683,790.52-943,667.24-393,446.20

Finding the Fourth Proportional to 683,790.52, 943,667.24 and 393,446.20

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Solution

The fourth proportional to 683,790.52, 943,667.24 and 393,446.20 is: 542,976.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,790.52 : 943,667.24 = 393,446.20 : x
  2. Step 2: Convert to fraction form
    683,790.52/943,667.24 = 393,446.20/x
  3. Step 3: Cross multiply
    683,790.52x = 943,667.24 × 393,446.20
  4. Step 4: Simplify right side
    683,790.52x = 371,282,289,642.49
  5. Step 5: Solve for x
    x = 371,282,289,642.49/683,790.52
  6. Step 6: Final answer
    x = 542,976.66

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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.