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Finding the Fourth Proportional to 656,009.98, 905,308.48 and 365,651.26

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Solution

The fourth proportional to 656,009.98, 905,308.48 and 365,651.26 is: 504,606.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,009.98 : 905,308.48 = 365,651.26 : x
  2. Step 2: Convert to fraction form
    656,009.98/905,308.48 = 365,651.26/x
  3. Step 3: Cross multiply
    656,009.98x = 905,308.48 × 365,651.26
  4. Step 4: Simplify right side
    656,009.98x = 331,027,184,137.41
  5. Step 5: Solve for x
    x = 331,027,184,137.41/656,009.98
  6. Step 6: Final answer
    x = 504,606.93

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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.