Home / 656,134.12-981,969.54-403,281.28

Finding the Fourth Proportional to 656,134.12, 981,969.54 and 403,281.28

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Solution

The fourth proportional to 656,134.12, 981,969.54 and 403,281.28 is: 603,550.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,134.12 : 981,969.54 = 403,281.28 : x
  2. Step 2: Convert to fraction form
    656,134.12/981,969.54 = 403,281.28/x
  3. Step 3: Cross multiply
    656,134.12x = 981,969.54 × 403,281.28
  4. Step 4: Simplify right side
    656,134.12x = 396,009,933,012.21
  5. Step 5: Solve for x
    x = 396,009,933,012.21/656,134.12
  6. Step 6: Final answer
    x = 603,550.28

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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.