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Finding the Fourth Proportional to 342,485.08, 472,622.34 and 189,523.17

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Solution

The fourth proportional to 342,485.08, 472,622.34 and 189,523.17 is: 261,538.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,485.08 : 472,622.34 = 189,523.17 : x
  2. Step 2: Convert to fraction form
    342,485.08/472,622.34 = 189,523.17/x
  3. Step 3: Cross multiply
    342,485.08x = 472,622.34 × 189,523.17
  4. Step 4: Simplify right side
    342,485.08x = 89,572,885,151.24
  5. Step 5: Solve for x
    x = 89,572,885,151.24/342,485.08
  6. Step 6: Final answer
    x = 261,538.06

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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.