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Finding the Fourth Proportional to 585,696.80, 808,253.16 and 331,039.28

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Solution

The fourth proportional to 585,696.80, 808,253.16 and 331,039.28 is: 456,829.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,696.80 : 808,253.16 = 331,039.28 : x
  2. Step 2: Convert to fraction form
    585,696.80/808,253.16 = 331,039.28/x
  3. Step 3: Cross multiply
    585,696.80x = 808,253.16 × 331,039.28
  4. Step 4: Simplify right side
    585,696.80x = 267,563,544,144.13
  5. Step 5: Solve for x
    x = 267,563,544,144.13/585,696.80
  6. Step 6: Final answer
    x = 456,829.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.