Home / 783,715.94-1,081,539.85-439,628.14

Finding the Fourth Proportional to 783,715.94, 1,081,539.85 and 439,628.14

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Solution

The fourth proportional to 783,715.94, 1,081,539.85 and 439,628.14 is: 606,693.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,715.94 : 1,081,539.85 = 439,628.14 : x
  2. Step 2: Convert to fraction form
    783,715.94/1,081,539.85 = 439,628.14/x
  3. Step 3: Cross multiply
    783,715.94x = 1,081,539.85 × 439,628.14
  4. Step 4: Simplify right side
    783,715.94x = 475,475,352,591.38
  5. Step 5: Solve for x
    x = 475,475,352,591.38/783,715.94
  6. Step 6: Final answer
    x = 606,693.48

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1.5x scale

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.