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Finding the Fourth Proportional to 656,195.80, 984,293.70 and 418,833.40

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Solution

The fourth proportional to 656,195.80, 984,293.70 and 418,833.40 is: 628,250.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,195.80 : 984,293.70 = 418,833.40 : x
  2. Step 2: Convert to fraction form
    656,195.80/984,293.70 = 418,833.40/x
  3. Step 3: Cross multiply
    656,195.80x = 984,293.70 × 418,833.40
  4. Step 4: Simplify right side
    656,195.80x = 412,255,076,969.58
  5. Step 5: Solve for x
    x = 412,255,076,969.58/656,195.80
  6. Step 6: Final answer
    x = 628,250.10

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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.