Home / 1,243,788.10-1,865,846.31-434,187.09

Finding the Fourth Proportional to 1,243,788.10, 1,865,846.31 and 434,187.09

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Solution

The fourth proportional to 1,243,788.10, 1,865,846.31 and 434,187.09 is: 651,337.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,788.10 : 1,865,846.31 = 434,187.09 : x
  2. Step 2: Convert to fraction form
    1,243,788.10/1,865,846.31 = 434,187.09/x
  3. Step 3: Cross multiply
    1,243,788.10x = 1,865,846.31 × 434,187.09
  4. Step 4: Simplify right side
    1,243,788.10x = 810,126,379,726.14
  5. Step 5: Solve for x
    x = 810,126,379,726.14/1,243,788.10
  6. Step 6: Final answer
    x = 651,337.94

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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.