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Finding the Fourth Proportional to 655,600.80, 983,433.60 and 340,672.80

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Solution

The fourth proportional to 655,600.80, 983,433.60 and 340,672.80 is: 511,026.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,600.80 : 983,433.60 = 340,672.80 : x
  2. Step 2: Convert to fraction form
    655,600.80/983,433.60 = 340,672.80/x
  3. Step 3: Cross multiply
    655,600.80x = 983,433.60 × 340,672.80
  4. Step 4: Simplify right side
    655,600.80x = 335,029,078,126.08
  5. Step 5: Solve for x
    x = 335,029,078,126.08/655,600.80
  6. Step 6: Final answer
    x = 511,026.04

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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.