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Finding the Fourth Proportional to 605,000.95, 907,501.43 and 381,052.15

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Solution

The fourth proportional to 605,000.95, 907,501.43 and 381,052.15 is: 571,578.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,000.95 : 907,501.43 = 381,052.15 : x
  2. Step 2: Convert to fraction form
    605,000.95/907,501.43 = 381,052.15/x
  3. Step 3: Cross multiply
    605,000.95x = 907,501.43 × 381,052.15
  4. Step 4: Simplify right side
    605,000.95x = 345,805,369,124.31
  5. Step 5: Solve for x
    x = 345,805,369,124.31/605,000.95
  6. Step 6: Final answer
    x = 571,578.23

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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.