Home / 783,864.72-1,081,744.83-439,776.72

Finding the Fourth Proportional to 783,864.72, 1,081,744.83 and 439,776.72

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Solution

The fourth proportional to 783,864.72, 1,081,744.83 and 439,776.72 is: 606,898.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,864.72 : 1,081,744.83 = 439,776.72 : x
  2. Step 2: Convert to fraction form
    783,864.72/1,081,744.83 = 439,776.72/x
  3. Step 3: Cross multiply
    783,864.72x = 1,081,744.83 × 439,776.72
  4. Step 4: Simplify right side
    783,864.72x = 475,726,193,214.36
  5. Step 5: Solve for x
    x = 475,726,193,214.36/783,864.72
  6. Step 6: Final answer
    x = 606,898.33

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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.