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Finding the Fourth Proportional to 404,762.80, 607,144.20 and 404,762.80

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Solution

The fourth proportional to 404,762.80, 607,144.20 and 404,762.80 is: 607,144.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,762.80 : 607,144.20 = 404,762.80 : x
  2. Step 2: Convert to fraction form
    404,762.80/607,144.20 = 404,762.80/x
  3. Step 3: Cross multiply
    404,762.80x = 607,144.20 × 404,762.80
  4. Step 4: Simplify right side
    404,762.80x = 245,749,386,395.76
  5. Step 5: Solve for x
    x = 245,749,386,395.76/404,762.80
  6. Step 6: Final answer
    x = 607,144.20

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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.