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Finding the Fourth Proportional to 479,325.12, 715,342.62 and 426,182.64

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Solution

The fourth proportional to 479,325.12, 715,342.62 and 426,182.64 is: 636,033.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,325.12 : 715,342.62 = 426,182.64 : x
  2. Step 2: Convert to fraction form
    479,325.12/715,342.62 = 426,182.64/x
  3. Step 3: Cross multiply
    479,325.12x = 715,342.62 × 426,182.64
  4. Step 4: Simplify right side
    479,325.12x = 304,866,606,296.12
  5. Step 5: Solve for x
    x = 304,866,606,296.12/479,325.12
  6. Step 6: Final answer
    x = 636,033.03

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.