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Finding the Fourth Proportional to 656,043.10, 905,348.58 and 365,646.62

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Solution

The fourth proportional to 656,043.10, 905,348.58 and 365,646.62 is: 504,597.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,043.10 : 905,348.58 = 365,646.62 : x
  2. Step 2: Convert to fraction form
    656,043.10/905,348.58 = 365,646.62/x
  3. Step 3: Cross multiply
    656,043.10x = 905,348.58 × 365,646.62
  4. Step 4: Simplify right side
    656,043.10x = 331,037,648,198.80
  5. Step 5: Solve for x
    x = 331,037,648,198.80/656,043.10
  6. Step 6: Final answer
    x = 504,597.41

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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.