Home / 728,707.70-1,093,061.55-528,086.90

Finding the Fourth Proportional to 728,707.70, 1,093,061.55 and 528,086.90

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Solution

The fourth proportional to 728,707.70, 1,093,061.55 and 528,086.90 is: 792,130.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,707.70 : 1,093,061.55 = 528,086.90 : x
  2. Step 2: Convert to fraction form
    728,707.70/1,093,061.55 = 528,086.90/x
  3. Step 3: Cross multiply
    728,707.70x = 1,093,061.55 × 528,086.90
  4. Step 4: Simplify right side
    728,707.70x = 577,231,485,448.70
  5. Step 5: Solve for x
    x = 577,231,485,448.70/728,707.70
  6. Step 6: Final answer
    x = 792,130.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.