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Finding the Fourth Proportional to 624,063.90, 934,783.65 and 519,087.90

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Solution

The fourth proportional to 624,063.90, 934,783.65 and 519,087.90 is: 777,540.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,063.90 : 934,783.65 = 519,087.90 : x
  2. Step 2: Convert to fraction form
    624,063.90/934,783.65 = 519,087.90/x
  3. Step 3: Cross multiply
    624,063.90x = 934,783.65 × 519,087.90
  4. Step 4: Simplify right side
    624,063.90x = 485,234,881,832.84
  5. Step 5: Solve for x
    x = 485,234,881,832.84/624,063.90
  6. Step 6: Final answer
    x = 777,540.38

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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.