Home / 683,688.40-943,486.38-377,785.87

Finding the Fourth Proportional to 683,688.40, 943,486.38 and 377,785.87

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Solution

The fourth proportional to 683,688.40, 943,486.38 and 377,785.87 is: 521,342.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,688.40 : 943,486.38 = 377,785.87 : x
  2. Step 2: Convert to fraction form
    683,688.40/943,486.38 = 377,785.87/x
  3. Step 3: Cross multiply
    683,688.40x = 943,486.38 × 377,785.87
  4. Step 4: Simplify right side
    683,688.40x = 356,435,825,849.85
  5. Step 5: Solve for x
    x = 356,435,825,849.85/683,688.40
  6. Step 6: Final answer
    x = 521,342.51

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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.