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Finding the Fourth Proportional to 652,566.70, 978,072.45 and 273,486.70

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Solution

The fourth proportional to 652,566.70, 978,072.45 and 273,486.70 is: 409,904.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,566.70 : 978,072.45 = 273,486.70 : x
  2. Step 2: Convert to fraction form
    652,566.70/978,072.45 = 273,486.70/x
  3. Step 3: Cross multiply
    652,566.70x = 978,072.45 × 273,486.70
  4. Step 4: Simplify right side
    652,566.70x = 267,489,806,711.42
  5. Step 5: Solve for x
    x = 267,489,806,711.42/652,566.70
  6. Step 6: Final answer
    x = 409,904.16

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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.