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Finding the Fourth Proportional to 532,243.50, 798,584.49 and 390,811.02

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Solution

The fourth proportional to 532,243.50, 798,584.49 and 390,811.02 is: 586,377.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,243.50 : 798,584.49 = 390,811.02 : x
  2. Step 2: Convert to fraction form
    532,243.50/798,584.49 = 390,811.02/x
  3. Step 3: Cross multiply
    532,243.50x = 798,584.49 × 390,811.02
  4. Step 4: Simplify right side
    532,243.50x = 312,095,619,093.08
  5. Step 5: Solve for x
    x = 312,095,619,093.08/532,243.50
  6. Step 6: Final answer
    x = 586,377.51

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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.