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Finding the Fourth Proportional to 482,364.64, 723,316.72 and 216,127.36

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Solution

The fourth proportional to 482,364.64, 723,316.72 and 216,127.36 is: 324,087.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,364.64 : 723,316.72 = 216,127.36 : x
  2. Step 2: Convert to fraction form
    482,364.64/723,316.72 = 216,127.36/x
  3. Step 3: Cross multiply
    482,364.64x = 723,316.72 × 216,127.36
  4. Step 4: Simplify right side
    482,364.64x = 156,328,533,137.46
  5. Step 5: Solve for x
    x = 156,328,533,137.46/482,364.64
  6. Step 6: Final answer
    x = 324,087.88

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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.