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Finding the Fourth Proportional to 625,783.02, 863,575.38 and 353,904.30

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Solution

The fourth proportional to 625,783.02, 863,575.38 and 353,904.30 is: 488,385.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,783.02 : 863,575.38 = 353,904.30 : x
  2. Step 2: Convert to fraction form
    625,783.02/863,575.38 = 353,904.30/x
  3. Step 3: Cross multiply
    625,783.02x = 863,575.38 × 353,904.30
  4. Step 4: Simplify right side
    625,783.02x = 305,623,040,356.13
  5. Step 5: Solve for x
    x = 305,623,040,356.13/625,783.02
  6. Step 6: Final answer
    x = 488,385.00

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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.