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Finding the Fourth Proportional to 535,940.54, 802,859.81 and 310,828.18

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Solution

The fourth proportional to 535,940.54, 802,859.81 and 310,828.18 is: 465,632.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,940.54 : 802,859.81 = 310,828.18 : x
  2. Step 2: Convert to fraction form
    535,940.54/802,859.81 = 310,828.18/x
  3. Step 3: Cross multiply
    535,940.54x = 802,859.81 × 310,828.18
  4. Step 4: Simplify right side
    535,940.54x = 249,551,449,523.15
  5. Step 5: Solve for x
    x = 249,551,449,523.15/535,940.54
  6. Step 6: Final answer
    x = 465,632.72

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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.