Home / 1,069,512.80-1,603,491.60-438,101.60

Finding the Fourth Proportional to 1,069,512.80, 1,603,491.60 and 438,101.60

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Solution

The fourth proportional to 1,069,512.80, 1,603,491.60 and 438,101.60 is: 656,833.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,512.80 : 1,603,491.60 = 438,101.60 : x
  2. Step 2: Convert to fraction form
    1,069,512.80/1,603,491.60 = 438,101.60/x
  3. Step 3: Cross multiply
    1,069,512.80x = 1,603,491.60 × 438,101.60
  4. Step 4: Simplify right side
    1,069,512.80x = 702,492,235,546.56
  5. Step 5: Solve for x
    x = 702,492,235,546.56/1,069,512.80
  6. Step 6: Final answer
    x = 656,833.87

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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.