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Finding the Fourth Proportional to 348,893.60, 523,340.40 and 331,690.40

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Solution

The fourth proportional to 348,893.60, 523,340.40 and 331,690.40 is: 497,535.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,893.60 : 523,340.40 = 331,690.40 : x
  2. Step 2: Convert to fraction form
    348,893.60/523,340.40 = 331,690.40/x
  3. Step 3: Cross multiply
    348,893.60x = 523,340.40 × 331,690.40
  4. Step 4: Simplify right side
    348,893.60x = 173,586,986,612.16
  5. Step 5: Solve for x
    x = 173,586,986,612.16/348,893.60
  6. Step 6: Final answer
    x = 497,535.60

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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.