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Finding the Fourth Proportional to 691,560.75, 954,370.71 and 385,634.15

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Solution

The fourth proportional to 691,560.75, 954,370.71 and 385,634.15 is: 532,184.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,560.75 : 954,370.71 = 385,634.15 : x
  2. Step 2: Convert to fraction form
    691,560.75/954,370.71 = 385,634.15/x
  3. Step 3: Cross multiply
    691,560.75x = 954,370.71 × 385,634.15
  4. Step 4: Simplify right side
    691,560.75x = 368,037,932,763.89
  5. Step 5: Solve for x
    x = 368,037,932,763.89/691,560.75
  6. Step 6: Final answer
    x = 532,184.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.