Home / 664,330.20-916,826.42-377,833.20

Finding the Fourth Proportional to 664,330.20, 916,826.42 and 377,833.20

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Solution

The fourth proportional to 664,330.20, 916,826.42 and 377,833.20 is: 521,438.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,330.20 : 916,826.42 = 377,833.20 : x
  2. Step 2: Convert to fraction form
    664,330.20/916,826.42 = 377,833.20/x
  3. Step 3: Cross multiply
    664,330.20x = 916,826.42 × 377,833.20
  4. Step 4: Simplify right side
    664,330.20x = 346,407,460,113.14
  5. Step 5: Solve for x
    x = 346,407,460,113.14/664,330.20
  6. Step 6: Final answer
    x = 521,438.68

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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.