Home / 528,667.14-729,561.39-286,949.77

Finding the Fourth Proportional to 528,667.14, 729,561.39 and 286,949.77

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Solution

The fourth proportional to 528,667.14, 729,561.39 and 286,949.77 is: 395,991.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,667.14 : 729,561.39 = 286,949.77 : x
  2. Step 2: Convert to fraction form
    528,667.14/729,561.39 = 286,949.77/x
  3. Step 3: Cross multiply
    528,667.14x = 729,561.39 × 286,949.77
  4. Step 4: Simplify right side
    528,667.14x = 209,347,469,413.57
  5. Step 5: Solve for x
    x = 209,347,469,413.57/528,667.14
  6. Step 6: Final answer
    x = 395,991.08

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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.