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Finding the Fourth Proportional to 656,330.11, 905,730.16 and 365,938.23

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Solution

The fourth proportional to 656,330.11, 905,730.16 and 365,938.23 is: 504,991.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,330.11 : 905,730.16 = 365,938.23 : x
  2. Step 2: Convert to fraction form
    656,330.11/905,730.16 = 365,938.23/x
  3. Step 3: Cross multiply
    656,330.11x = 905,730.16 × 365,938.23
  4. Step 4: Simplify right side
    656,330.11x = 331,441,291,608.02
  5. Step 5: Solve for x
    x = 331,441,291,608.02/656,330.11
  6. Step 6: Final answer
    x = 504,991.75

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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.