Home / 783,715.07-1,081,538.64-439,627.27

Finding the Fourth Proportional to 783,715.07, 1,081,538.64 and 439,627.27

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Solution

The fourth proportional to 783,715.07, 1,081,538.64 and 439,627.27 is: 606,692.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,715.07 : 1,081,538.64 = 439,627.27 : x
  2. Step 2: Convert to fraction form
    783,715.07/1,081,538.64 = 439,627.27/x
  3. Step 3: Cross multiply
    783,715.07x = 1,081,538.64 × 439,627.27
  4. Step 4: Simplify right side
    783,715.07x = 475,473,876,998.87
  5. Step 5: Solve for x
    x = 475,473,876,998.87/783,715.07
  6. Step 6: Final answer
    x = 606,692.28

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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.