Home / 745,146.06-1,028,435.77-439,204.59

Finding the Fourth Proportional to 745,146.06, 1,028,435.77 and 439,204.59

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Solution

The fourth proportional to 745,146.06, 1,028,435.77 and 439,204.59 is: 606,181.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,146.06 : 1,028,435.77 = 439,204.59 : x
  2. Step 2: Convert to fraction form
    745,146.06/1,028,435.77 = 439,204.59/x
  3. Step 3: Cross multiply
    745,146.06x = 1,028,435.77 × 439,204.59
  4. Step 4: Simplify right side
    745,146.06x = 451,693,703,365.98
  5. Step 5: Solve for x
    x = 451,693,703,365.98/745,146.06
  6. Step 6: Final answer
    x = 606,181.43

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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.