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Finding the Fourth Proportional to 2,221,216.40, 3,103,404.40 and 2,221,216.40

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Solution

The fourth proportional to 2,221,216.40, 3,103,404.40 and 2,221,216.40 is: 3,103,404.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221,216.40 : 3,103,404.40 = 2,221,216.40 : x
  2. Step 2: Convert to fraction form
    2,221,216.40/3,103,404.40 = 2,221,216.40/x
  3. Step 3: Cross multiply
    2,221,216.40x = 3,103,404.40 × 2,221,216.40
  4. Step 4: Simplify right side
    2,221,216.40x = 6,893,332,749,112.16
  5. Step 5: Solve for x
    x = 6,893,332,749,112.16/2,221,216.40
  6. Step 6: Final answer
    x = 3,103,404.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.