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Finding the Fourth Proportional to 453,013.76, 624,645.36 and 289,454.16

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Solution

The fourth proportional to 453,013.76, 624,645.36 and 289,454.16 is: 399,118.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,013.76 : 624,645.36 = 289,454.16 : x
  2. Step 2: Convert to fraction form
    453,013.76/624,645.36 = 289,454.16/x
  3. Step 3: Cross multiply
    453,013.76x = 624,645.36 × 289,454.16
  4. Step 4: Simplify right side
    453,013.76x = 180,806,197,976.70
  5. Step 5: Solve for x
    x = 180,806,197,976.70/453,013.76
  6. Step 6: Final answer
    x = 399,118.56

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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.