Home / 1,069,512.90-1,605,176.55-438,879.30

Finding the Fourth Proportional to 1,069,512.90, 1,605,176.55 and 438,879.30

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Solution

The fourth proportional to 1,069,512.90, 1,605,176.55 and 438,879.30 is: 658,691.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,512.90 : 1,605,176.55 = 438,879.30 : x
  2. Step 2: Convert to fraction form
    1,069,512.90/1,605,176.55 = 438,879.30/x
  3. Step 3: Cross multiply
    1,069,512.90x = 1,605,176.55 × 438,879.30
  4. Step 4: Simplify right side
    1,069,512.90x = 704,478,760,640.42
  5. Step 5: Solve for x
    x = 704,478,760,640.42/1,069,512.90
  6. Step 6: Final answer
    x = 658,691.22

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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.