Home / 936,000.22-1,291,569.16-528,078.25

Finding the Fourth Proportional to 936,000.22, 1,291,569.16 and 528,078.25

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Solution

The fourth proportional to 936,000.22, 1,291,569.16 and 528,078.25 is: 728,685.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,000.22 : 1,291,569.16 = 528,078.25 : x
  2. Step 2: Convert to fraction form
    936,000.22/1,291,569.16 = 528,078.25/x
  3. Step 3: Cross multiply
    936,000.22x = 1,291,569.16 × 528,078.25
  4. Step 4: Simplify right side
    936,000.22x = 682,049,581,766.77
  5. Step 5: Solve for x
    x = 682,049,581,766.77/936,000.22
  6. Step 6: Final answer
    x = 728,685.28

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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.