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Finding the Fourth Proportional to 892,797.78, 1,232,069.84 and 484,903.45

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Solution

The fourth proportional to 892,797.78, 1,232,069.84 and 484,903.45 is: 669,171.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,797.78 : 1,232,069.84 = 484,903.45 : x
  2. Step 2: Convert to fraction form
    892,797.78/1,232,069.84 = 484,903.45/x
  3. Step 3: Cross multiply
    892,797.78x = 1,232,069.84 × 484,903.45
  4. Step 4: Simplify right side
    892,797.78x = 597,434,916,056.95
  5. Step 5: Solve for x
    x = 597,434,916,056.95/892,797.78
  6. Step 6: Final answer
    x = 669,171.60

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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.