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Finding the Fourth Proportional to 879,951.69, 1,214,350.56 and 574,223.67

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Solution

The fourth proportional to 879,951.69, 1,214,350.56 and 574,223.67 is: 792,439.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,951.69 : 1,214,350.56 = 574,223.67 : x
  2. Step 2: Convert to fraction form
    879,951.69/1,214,350.56 = 574,223.67/x
  3. Step 3: Cross multiply
    879,951.69x = 1,214,350.56 × 574,223.67
  4. Step 4: Simplify right side
    879,951.69x = 697,308,835,229.76
  5. Step 5: Solve for x
    x = 697,308,835,229.76/879,951.69
  6. Step 6: Final answer
    x = 792,439.91

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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.