Home / 415,191.08-620,511.45-303,107.33

Finding the Fourth Proportional to 415,191.08, 620,511.45 and 303,107.33

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Solution

The fourth proportional to 415,191.08, 620,511.45 and 303,107.33 is: 453,000.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,191.08 : 620,511.45 = 303,107.33 : x
  2. Step 2: Convert to fraction form
    415,191.08/620,511.45 = 303,107.33/x
  3. Step 3: Cross multiply
    415,191.08x = 620,511.45 × 303,107.33
  4. Step 4: Simplify right side
    415,191.08x = 188,081,565,741.37
  5. Step 5: Solve for x
    x = 188,081,565,741.37/415,191.08
  6. Step 6: Final answer
    x = 453,000.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.