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Finding the Fourth Proportional to 342,364.60, 512,574.90 and 323,745.40

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Solution

The fourth proportional to 342,364.60, 512,574.90 and 323,745.40 is: 484,698.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,364.60 : 512,574.90 = 323,745.40 : x
  2. Step 2: Convert to fraction form
    342,364.60/512,574.90 = 323,745.40/x
  3. Step 3: Cross multiply
    342,364.60x = 512,574.90 × 323,745.40
  4. Step 4: Simplify right side
    342,364.60x = 165,943,766,030.46
  5. Step 5: Solve for x
    x = 165,943,766,030.46/342,364.60
  6. Step 6: Final answer
    x = 484,698.96

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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.