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Finding the Fourth Proportional to 672,308.70, 927,758.85 and 366,378.51

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Solution

The fourth proportional to 672,308.70, 927,758.85 and 366,378.51 is: 505,587.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,308.70 : 927,758.85 = 366,378.51 : x
  2. Step 2: Convert to fraction form
    672,308.70/927,758.85 = 366,378.51/x
  3. Step 3: Cross multiply
    672,308.70x = 927,758.85 × 366,378.51
  4. Step 4: Simplify right side
    672,308.70x = 339,910,905,102.31
  5. Step 5: Solve for x
    x = 339,910,905,102.31/672,308.70
  6. Step 6: Final answer
    x = 505,587.54

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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.