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Finding the Fourth Proportional to 3,456,378.40, 4,843,906.40 and 3,456,378.40

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Solution

The fourth proportional to 3,456,378.40, 4,843,906.40 and 3,456,378.40 is: 4,843,906.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,456,378.40 : 4,843,906.40 = 3,456,378.40 : x
  2. Step 2: Convert to fraction form
    3,456,378.40/4,843,906.40 = 3,456,378.40/x
  3. Step 3: Cross multiply
    3,456,378.40x = 4,843,906.40 × 3,456,378.40
  4. Step 4: Simplify right side
    3,456,378.40x = 16,742,373,452,581.76
  5. Step 5: Solve for x
    x = 16,742,373,452,581.76/3,456,378.40
  6. Step 6: Final answer
    x = 4,843,906.40

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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.