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Finding the Fourth Proportional to 4,921,920.40, 6,873,892.40 and 4,921,920.40

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Solution

The fourth proportional to 4,921,920.40, 6,873,892.40 and 4,921,920.40 is: 6,873,892.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921,920.40 : 6,873,892.40 = 4,921,920.40 : x
  2. Step 2: Convert to fraction form
    4,921,920.40/6,873,892.40 = 4,921,920.40/x
  3. Step 3: Cross multiply
    4,921,920.40x = 6,873,892.40 × 4,921,920.40
  4. Step 4: Simplify right side
    4,921,920.40x = 33,832,751,230,964.96
  5. Step 5: Solve for x
    x = 33,832,751,230,964.96/4,921,920.40
  6. Step 6: Final answer
    x = 6,873,892.40

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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.