Home / 778,581.09-1,074,442.19-439,049.34

Finding the Fourth Proportional to 778,581.09, 1,074,442.19 and 439,049.34

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Solution

The fourth proportional to 778,581.09, 1,074,442.19 and 439,049.34 is: 605,888.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,581.09 : 1,074,442.19 = 439,049.34 : x
  2. Step 2: Convert to fraction form
    778,581.09/1,074,442.19 = 439,049.34/x
  3. Step 3: Cross multiply
    778,581.09x = 1,074,442.19 × 439,049.34
  4. Step 4: Simplify right side
    778,581.09x = 471,733,132,192.41
  5. Step 5: Solve for x
    x = 471,733,132,192.41/778,581.09
  6. Step 6: Final answer
    x = 605,888.25

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Double scale
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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.