Home / 783,169.32-1,080,530.88-438,957.54

Finding the Fourth Proportional to 783,169.32, 1,080,530.88 and 438,957.54

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Solution

The fourth proportional to 783,169.32, 1,080,530.88 and 438,957.54 is: 605,625.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,169.32 : 1,080,530.88 = 438,957.54 : x
  2. Step 2: Convert to fraction form
    783,169.32/1,080,530.88 = 438,957.54/x
  3. Step 3: Cross multiply
    783,169.32x = 1,080,530.88 × 438,957.54
  4. Step 4: Simplify right side
    783,169.32x = 474,307,176,978.84
  5. Step 5: Solve for x
    x = 474,307,176,978.84/783,169.32
  6. Step 6: Final answer
    x = 605,625.33

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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.