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Finding the Fourth Proportional to 464,490.70, 696,756.30 and 127,522.60

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Solution

The fourth proportional to 464,490.70, 696,756.30 and 127,522.60 is: 191,289.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,490.70 : 696,756.30 = 127,522.60 : x
  2. Step 2: Convert to fraction form
    464,490.70/696,756.30 = 127,522.60/x
  3. Step 3: Cross multiply
    464,490.70x = 696,756.30 × 127,522.60
  4. Step 4: Simplify right side
    464,490.70x = 88,852,174,942.38
  5. Step 5: Solve for x
    x = 88,852,174,942.38/464,490.70
  6. Step 6: Final answer
    x = 191,289.46

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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.