Home / 783,715.69-1,081,539.50-439,627.89

Finding the Fourth Proportional to 783,715.69, 1,081,539.50 and 439,627.89

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Solution

The fourth proportional to 783,715.69, 1,081,539.50 and 439,627.89 is: 606,693.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,715.69 : 1,081,539.50 = 439,627.89 : x
  2. Step 2: Convert to fraction form
    783,715.69/1,081,539.50 = 439,627.89/x
  3. Step 3: Cross multiply
    783,715.69x = 1,081,539.50 × 439,627.89
  4. Step 4: Simplify right side
    783,715.69x = 475,474,928,336.66
  5. Step 5: Solve for x
    x = 475,474,928,336.66/783,715.69
  6. Step 6: Final answer
    x = 606,693.13

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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.