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Finding the Fourth Proportional to 5,642,840.88, 7,787,118.48 and 3,064,522.32

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Solution

The fourth proportional to 5,642,840.88, 7,787,118.48 and 3,064,522.32 is: 4,229,039.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,642,840.88 : 7,787,118.48 = 3,064,522.32 : x
  2. Step 2: Convert to fraction form
    5,642,840.88/7,787,118.48 = 3,064,522.32/x
  3. Step 3: Cross multiply
    5,642,840.88x = 7,787,118.48 × 3,064,522.32
  4. Step 4: Simplify right side
    5,642,840.88x = 23,863,798,390,444.47
  5. Step 5: Solve for x
    x = 23,863,798,390,444.47/5,642,840.88
  6. Step 6: Final answer
    x = 4,229,039.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.