Home / 2,085,603.20-3,128,404.80-665,705.60

Finding the Fourth Proportional to 2,085,603.20, 3,128,404.80 and 665,705.60

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Solution

The fourth proportional to 2,085,603.20, 3,128,404.80 and 665,705.60 is: 998,558.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,085,603.20 : 3,128,404.80 = 665,705.60 : x
  2. Step 2: Convert to fraction form
    2,085,603.20/3,128,404.80 = 665,705.60/x
  3. Step 3: Cross multiply
    2,085,603.20x = 3,128,404.80 × 665,705.60
  4. Step 4: Simplify right side
    2,085,603.20x = 2,082,596,594,426.88
  5. Step 5: Solve for x
    x = 2,082,596,594,426.88/2,085,603.20
  6. Step 6: Final answer
    x = 998,558.40

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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.