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Finding the Fourth Proportional to 477,840.88, 659,406.44 and 262,980.80

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Solution

The fourth proportional to 477,840.88, 659,406.44 and 262,980.80 is: 362,905.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,840.88 : 659,406.44 = 262,980.80 : x
  2. Step 2: Convert to fraction form
    477,840.88/659,406.44 = 262,980.80/x
  3. Step 3: Cross multiply
    477,840.88x = 659,406.44 × 262,980.80
  4. Step 4: Simplify right side
    477,840.88x = 173,411,233,116.35
  5. Step 5: Solve for x
    x = 173,411,233,116.35/477,840.88
  6. Step 6: Final answer
    x = 362,905.81

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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.