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Finding the Fourth Proportional to 659,968.66, 910,286.61 and 605,695.52

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Solution

The fourth proportional to 659,968.66, 910,286.61 and 605,695.52 is: 835,428.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,968.66 : 910,286.61 = 605,695.52 : x
  2. Step 2: Convert to fraction form
    659,968.66/910,286.61 = 605,695.52/x
  3. Step 3: Cross multiply
    659,968.66x = 910,286.61 × 605,695.52
  4. Step 4: Simplify right side
    659,968.66x = 551,356,521,597.35
  5. Step 5: Solve for x
    x = 551,356,521,597.35/659,968.66
  6. Step 6: Final answer
    x = 835,428.34

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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.