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Finding the Fourth Proportional to 404,812.80, 606,700.80 and 310,852.80

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Solution

The fourth proportional to 404,812.80, 606,700.80 and 310,852.80 is: 465,881.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,812.80 : 606,700.80 = 310,852.80 : x
  2. Step 2: Convert to fraction form
    404,812.80/606,700.80 = 310,852.80/x
  3. Step 3: Cross multiply
    404,812.80x = 606,700.80 × 310,852.80
  4. Step 4: Simplify right side
    404,812.80x = 188,594,642,442.24
  5. Step 5: Solve for x
    x = 188,594,642,442.24/404,812.80
  6. Step 6: Final answer
    x = 465,881.12

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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.