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Finding the Fourth Proportional to 444,374,479.20, 620,593,720.80 and 444,374,479.20

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Solution

The fourth proportional to 444,374,479.20, 620,593,720.80 and 444,374,479.20 is: 620,593,720.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,374,479.20 : 620,593,720.80 = 444,374,479.20 : x
  2. Step 2: Convert to fraction form
    444,374,479.20/620,593,720.80 = 444,374,479.20/x
  3. Step 3: Cross multiply
    444,374,479.20x = 620,593,720.80 × 444,374,479.20
  4. Step 4: Simplify right side
    444,374,479.20x = 275,776,011,475,290,176
  5. Step 5: Solve for x
    x = 275,776,011,475,290,176/444,374,479.20
  6. Step 6: Final answer
    x = 620,593,720.80

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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.