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Finding the Fourth Proportional to 517,495.70, 775,981.04 and 236,772.38

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Solution

The fourth proportional to 517,495.70, 775,981.04 and 236,772.38 is: 355,038.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,495.70 : 775,981.04 = 236,772.38 : x
  2. Step 2: Convert to fraction form
    517,495.70/775,981.04 = 236,772.38/x
  3. Step 3: Cross multiply
    517,495.70x = 775,981.04 × 236,772.38
  4. Step 4: Simplify right side
    517,495.70x = 183,730,872,611.91
  5. Step 5: Solve for x
    x = 183,730,872,611.91/517,495.70
  6. Step 6: Final answer
    x = 355,038.46

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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.