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Finding the Fourth Proportional to 540,624.39, 810,686.97 and 198,982.00

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Solution

The fourth proportional to 540,624.39, 810,686.97 and 198,982.00 is: 298,381.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,624.39 : 810,686.97 = 198,982.00 : x
  2. Step 2: Convert to fraction form
    540,624.39/810,686.97 = 198,982.00/x
  3. Step 3: Cross multiply
    540,624.39x = 810,686.97 × 198,982.00
  4. Step 4: Simplify right side
    540,624.39x = 161,312,112,131.14
  5. Step 5: Solve for x
    x = 161,312,112,131.14/540,624.39
  6. Step 6: Final answer
    x = 298,381.12

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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.