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Finding the Fourth Proportional to 373,312.80, 560,552.40 and 215,848.80

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Solution

The fourth proportional to 373,312.80, 560,552.40 and 215,848.80 is: 324,110.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,312.80 : 560,552.40 = 215,848.80 : x
  2. Step 2: Convert to fraction form
    373,312.80/560,552.40 = 215,848.80/x
  3. Step 3: Cross multiply
    373,312.80x = 560,552.40 × 215,848.80
  4. Step 4: Simplify right side
    373,312.80x = 120,994,562,877.12
  5. Step 5: Solve for x
    x = 120,994,562,877.12/373,312.80
  6. Step 6: Final answer
    x = 324,110.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.