Home / 664,317.11-916,786.79-373,947.41

Finding the Fourth Proportional to 664,317.11, 916,786.79 and 373,947.41

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Solution

The fourth proportional to 664,317.11, 916,786.79 and 373,947.41 is: 516,063.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,317.11 : 916,786.79 = 373,947.41 : x
  2. Step 2: Convert to fraction form
    664,317.11/916,786.79 = 373,947.41/x
  3. Step 3: Cross multiply
    664,317.11x = 916,786.79 × 373,947.41
  4. Step 4: Simplify right side
    664,317.11x = 342,830,039,189.04
  5. Step 5: Solve for x
    x = 342,830,039,189.04/664,317.11
  6. Step 6: Final answer
    x = 516,063.84

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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.