Home / 440,834.40-608,357.52-239,634.72

Finding the Fourth Proportional to 440,834.40, 608,357.52 and 239,634.72

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Solution

The fourth proportional to 440,834.40, 608,357.52 and 239,634.72 is: 330,699.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,834.40 : 608,357.52 = 239,634.72 : x
  2. Step 2: Convert to fraction form
    440,834.40/608,357.52 = 239,634.72/x
  3. Step 3: Cross multiply
    440,834.40x = 608,357.52 × 239,634.72
  4. Step 4: Simplify right side
    440,834.40x = 145,783,583,965.09
  5. Step 5: Solve for x
    x = 145,783,583,965.09/440,834.40
  6. Step 6: Final answer
    x = 330,699.20

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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.