Home / 439,509.31-606,413.49-255,778.02

Finding the Fourth Proportional to 439,509.31, 606,413.49 and 255,778.02

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Solution

The fourth proportional to 439,509.31, 606,413.49 and 255,778.02 is: 352,910.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,509.31 : 606,413.49 = 255,778.02 : x
  2. Step 2: Convert to fraction form
    439,509.31/606,413.49 = 255,778.02/x
  3. Step 3: Cross multiply
    439,509.31x = 606,413.49 × 255,778.02
  4. Step 4: Simplify right side
    439,509.31x = 155,107,240,814.32
  5. Step 5: Solve for x
    x = 155,107,240,814.32/439,509.31
  6. Step 6: Final answer
    x = 352,910.03

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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.