Home / 683,728.34-943,555.07-377,811.79

Finding the Fourth Proportional to 683,728.34, 943,555.07 and 377,811.79

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Solution

The fourth proportional to 683,728.34, 943,555.07 and 377,811.79 is: 521,385.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,728.34 : 943,555.07 = 377,811.79 : x
  2. Step 2: Convert to fraction form
    683,728.34/943,555.07 = 377,811.79/x
  3. Step 3: Cross multiply
    683,728.34x = 943,555.07 × 377,811.79
  4. Step 4: Simplify right side
    683,728.34x = 356,486,228,545.92
  5. Step 5: Solve for x
    x = 356,486,228,545.92/683,728.34
  6. Step 6: Final answer
    x = 521,385.78

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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.