Home / 656,131.12-905,339.64-384,184.96

Finding the Fourth Proportional to 656,131.12, 905,339.64 and 384,184.96

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Solution

The fourth proportional to 656,131.12, 905,339.64 and 384,184.96 is: 530,104.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,131.12 : 905,339.64 = 384,184.96 : x
  2. Step 2: Convert to fraction form
    656,131.12/905,339.64 = 384,184.96/x
  3. Step 3: Cross multiply
    656,131.12x = 905,339.64 × 384,184.96
  4. Step 4: Simplify right side
    656,131.12x = 347,817,873,379.81
  5. Step 5: Solve for x
    x = 347,817,873,379.81/656,131.12
  6. Step 6: Final answer
    x = 530,104.22

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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.