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Finding the Fourth Proportional to 489,107.85, 733,388.40 and 249,071.64

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Solution

The fourth proportional to 489,107.85, 733,388.40 and 249,071.64 is: 373,468.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,107.85 : 733,388.40 = 249,071.64 : x
  2. Step 2: Convert to fraction form
    489,107.85/733,388.40 = 249,071.64/x
  3. Step 3: Cross multiply
    489,107.85x = 733,388.40 × 249,071.64
  4. Step 4: Simplify right side
    489,107.85x = 182,666,251,544.98
  5. Step 5: Solve for x
    x = 182,666,251,544.98/489,107.85
  6. Step 6: Final answer
    x = 373,468.25

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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.