Home / 1,243,814.66-1,865,732.45-345,326.47

Finding the Fourth Proportional to 1,243,814.66, 1,865,732.45 and 345,326.47

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Solution

The fourth proportional to 1,243,814.66, 1,865,732.45 and 345,326.47 is: 517,992.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,814.66 : 1,865,732.45 = 345,326.47 : x
  2. Step 2: Convert to fraction form
    1,243,814.66/1,865,732.45 = 345,326.47/x
  3. Step 3: Cross multiply
    1,243,814.66x = 1,865,732.45 × 345,326.47
  4. Step 4: Simplify right side
    1,243,814.66x = 644,286,794,531.99
  5. Step 5: Solve for x
    x = 644,286,794,531.99/1,243,814.66
  6. Step 6: Final answer
    x = 517,992.60

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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.