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Finding the Fourth Proportional to 342,622.60, 472,820.22 and 185,458.43

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Solution

The fourth proportional to 342,622.60, 472,820.22 and 185,458.43 is: 255,933.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,622.60 : 472,820.22 = 185,458.43 : x
  2. Step 2: Convert to fraction form
    342,622.60/472,820.22 = 185,458.43/x
  3. Step 3: Cross multiply
    342,622.60x = 472,820.22 × 185,458.43
  4. Step 4: Simplify right side
    342,622.60x = 87,688,496,855.51
  5. Step 5: Solve for x
    x = 87,688,496,855.51/342,622.60
  6. Step 6: Final answer
    x = 255,933.20

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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.