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Finding the Fourth Proportional to 342,893.20, 514,339.80 and 201,175.60

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Solution

The fourth proportional to 342,893.20, 514,339.80 and 201,175.60 is: 301,763.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,893.20 : 514,339.80 = 201,175.60 : x
  2. Step 2: Convert to fraction form
    342,893.20/514,339.80 = 201,175.60/x
  3. Step 3: Cross multiply
    342,893.20x = 514,339.80 × 201,175.60
  4. Step 4: Simplify right side
    342,893.20x = 103,472,617,868.88
  5. Step 5: Solve for x
    x = 103,472,617,868.88/342,893.20
  6. Step 6: Final answer
    x = 301,763.40

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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.