Home / 415,734.20-623,784.90-202,383.80

Finding the Fourth Proportional to 415,734.20, 623,784.90 and 202,383.80

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Solution

The fourth proportional to 415,734.20, 623,784.90 and 202,383.80 is: 303,665.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,734.20 : 623,784.90 = 202,383.80 : x
  2. Step 2: Convert to fraction form
    415,734.20/623,784.90 = 202,383.80/x
  3. Step 3: Cross multiply
    415,734.20x = 623,784.90 × 202,383.80
  4. Step 4: Simplify right side
    415,734.20x = 126,243,958,444.62
  5. Step 5: Solve for x
    x = 126,243,958,444.62/415,734.20
  6. Step 6: Final answer
    x = 303,665.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.