Home / 420,193.35-630,290.04-153,845.91

Finding the Fourth Proportional to 420,193.35, 630,290.04 and 153,845.91

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Solution

The fourth proportional to 420,193.35, 630,290.04 and 153,845.91 is: 230,768.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,193.35 : 630,290.04 = 153,845.91 : x
  2. Step 2: Convert to fraction form
    420,193.35/630,290.04 = 153,845.91/x
  3. Step 3: Cross multiply
    420,193.35x = 630,290.04 × 153,845.91
  4. Step 4: Simplify right side
    420,193.35x = 96,967,544,767.74
  5. Step 5: Solve for x
    x = 96,967,544,767.74/420,193.35
  6. Step 6: Final answer
    x = 230,768.87

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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.