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Finding the Fourth Proportional to 404,802.80, 607,204.20 and 326,070.80

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Solution

The fourth proportional to 404,802.80, 607,204.20 and 326,070.80 is: 489,106.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,802.80 : 607,204.20 = 326,070.80 : x
  2. Step 2: Convert to fraction form
    404,802.80/607,204.20 = 326,070.80/x
  3. Step 3: Cross multiply
    404,802.80x = 607,204.20 × 326,070.80
  4. Step 4: Simplify right side
    404,802.80x = 197,991,559,257.36
  5. Step 5: Solve for x
    x = 197,991,559,257.36/404,802.80
  6. Step 6: Final answer
    x = 489,106.20

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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.