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Finding the Fourth Proportional to 495,183.87, 683,516.34 and 291,225.87

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Solution

The fourth proportional to 495,183.87, 683,516.34 and 291,225.87 is: 401,987.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,183.87 : 683,516.34 = 291,225.87 : x
  2. Step 2: Convert to fraction form
    495,183.87/683,516.34 = 291,225.87/x
  3. Step 3: Cross multiply
    495,183.87x = 683,516.34 × 291,225.87
  4. Step 4: Simplify right side
    495,183.87x = 199,057,640,775.72
  5. Step 5: Solve for x
    x = 199,057,640,775.72/495,183.87
  6. Step 6: Final answer
    x = 401,987.33

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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.