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Finding the Fourth Proportional to 373,985.60, 516,119.47 and 228,745.85

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Solution

The fourth proportional to 373,985.60, 516,119.47 and 228,745.85 is: 315,681.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,985.60 : 516,119.47 = 228,745.85 : x
  2. Step 2: Convert to fraction form
    373,985.60/516,119.47 = 228,745.85/x
  3. Step 3: Cross multiply
    373,985.60x = 516,119.47 × 228,745.85
  4. Step 4: Simplify right side
    373,985.60x = 118,060,185,809.17
  5. Step 5: Solve for x
    x = 118,060,185,809.17/373,985.60
  6. Step 6: Final answer
    x = 315,681.10

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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.