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Finding the Fourth Proportional to 655,622.30, 983,433.45 and 256,276.10

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Solution

The fourth proportional to 655,622.30, 983,433.45 and 256,276.10 is: 384,414.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,622.30 : 983,433.45 = 256,276.10 : x
  2. Step 2: Convert to fraction form
    655,622.30/983,433.45 = 256,276.10/x
  3. Step 3: Cross multiply
    655,622.30x = 983,433.45 × 256,276.10
  4. Step 4: Simplify right side
    655,622.30x = 252,030,489,175.55
  5. Step 5: Solve for x
    x = 252,030,489,175.55/655,622.30
  6. Step 6: Final answer
    x = 384,414.15

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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.