Home / 494,505-741,691.08-139,547.52

Finding the Fourth Proportional to 494,505, 741,691.08 and 139,547.52

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Solution

The fourth proportional to 494,505, 741,691.08 and 139,547.52 is: 209,302.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,505 : 741,691.08 = 139,547.52 : x
  2. Step 2: Convert to fraction form
    494,505/741,691.08 = 139,547.52/x
  3. Step 3: Cross multiply
    494,505x = 741,691.08 × 139,547.52
  4. Step 4: Simplify right side
    494,505x = 103,501,150,820.12
  5. Step 5: Solve for x
    x = 103,501,150,820.12/494,505
  6. Step 6: Final answer
    x = 209,302.54

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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.