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Finding the Fourth Proportional to 620,177.96, 855,601.34 and 358,360.27

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Solution

The fourth proportional to 620,177.96, 855,601.34 and 358,360.27 is: 494,396.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,177.96 : 855,601.34 = 358,360.27 : x
  2. Step 2: Convert to fraction form
    620,177.96/855,601.34 = 358,360.27/x
  3. Step 3: Cross multiply
    620,177.96x = 855,601.34 × 358,360.27
  4. Step 4: Simplify right side
    620,177.96x = 306,613,523,832.66
  5. Step 5: Solve for x
    x = 306,613,523,832.66/620,177.96
  6. Step 6: Final answer
    x = 494,396.03

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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.