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Finding the Fourth Proportional to 489,133.80, 732,825.90 and 301,926.60

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Solution

The fourth proportional to 489,133.80, 732,825.90 and 301,926.60 is: 452,349.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,133.80 : 732,825.90 = 301,926.60 : x
  2. Step 2: Convert to fraction form
    489,133.80/732,825.90 = 301,926.60/x
  3. Step 3: Cross multiply
    489,133.80x = 732,825.90 × 301,926.60
  4. Step 4: Simplify right side
    489,133.80x = 221,259,632,378.94
  5. Step 5: Solve for x
    x = 221,259,632,378.94/489,133.80
  6. Step 6: Final answer
    x = 452,349.91

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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.