Home / 783,634.50-1,081,340.06-439,484.53

Finding the Fourth Proportional to 783,634.50, 1,081,340.06 and 439,484.53

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Solution

The fourth proportional to 783,634.50, 1,081,340.06 and 439,484.53 is: 606,446.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,634.50 : 1,081,340.06 = 439,484.53 : x
  2. Step 2: Convert to fraction form
    783,634.50/1,081,340.06 = 439,484.53/x
  3. Step 3: Cross multiply
    783,634.50x = 1,081,340.06 × 439,484.53
  4. Step 4: Simplify right side
    783,634.50x = 475,232,228,039.27
  5. Step 5: Solve for x
    x = 475,232,228,039.27/783,634.50
  6. Step 6: Final answer
    x = 606,446.28

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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.