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Finding the Fourth Proportional to 570,426.24, 855,768.96 and 304,046.40

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Solution

The fourth proportional to 570,426.24, 855,768.96 and 304,046.40 is: 456,138.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,426.24 : 855,768.96 = 304,046.40 : x
  2. Step 2: Convert to fraction form
    570,426.24/855,768.96 = 304,046.40/x
  3. Step 3: Cross multiply
    570,426.24x = 855,768.96 × 304,046.40
  4. Step 4: Simplify right side
    570,426.24x = 260,193,471,519.74
  5. Step 5: Solve for x
    x = 260,193,471,519.74/570,426.24
  6. Step 6: Final answer
    x = 456,138.68

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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.