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Finding the Fourth Proportional to 398,800.62, 596,795.70 and 249,111.36

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Solution

The fourth proportional to 398,800.62, 596,795.70 and 249,111.36 is: 372,789.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,800.62 : 596,795.70 = 249,111.36 : x
  2. Step 2: Convert to fraction form
    398,800.62/596,795.70 = 249,111.36/x
  3. Step 3: Cross multiply
    398,800.62x = 596,795.70 × 249,111.36
  4. Step 4: Simplify right side
    398,800.62x = 148,668,588,469.15
  5. Step 5: Solve for x
    x = 148,668,588,469.15/398,800.62
  6. Step 6: Final answer
    x = 372,789.26

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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.