Home / 745,236.85-1,028,561.06-439,295.12

Finding the Fourth Proportional to 745,236.85, 1,028,561.06 and 439,295.12

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Solution

The fourth proportional to 745,236.85, 1,028,561.06 and 439,295.12 is: 606,306.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,236.85 : 1,028,561.06 = 439,295.12 : x
  2. Step 2: Convert to fraction form
    745,236.85/1,028,561.06 = 439,295.12/x
  3. Step 3: Cross multiply
    745,236.85x = 1,028,561.06 × 439,295.12
  4. Step 4: Simplify right side
    745,236.85x = 451,841,852,083.55
  5. Step 5: Solve for x
    x = 451,841,852,083.55/745,236.85
  6. Step 6: Final answer
    x = 606,306.38

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Double scale
Find fourth proportional to 745,237.85, 1,028,562.44 and 439,296.12
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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.