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Finding the Fourth Proportional to 585,921.59, 878,876 and 444,634.50

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Solution

The fourth proportional to 585,921.59, 878,876 and 444,634.50 is: 666,946.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,921.59 : 878,876 = 444,634.50 : x
  2. Step 2: Convert to fraction form
    585,921.59/878,876 = 444,634.50/x
  3. Step 3: Cross multiply
    585,921.59x = 878,876 × 444,634.50
  4. Step 4: Simplify right side
    585,921.59x = 390,778,590,822
  5. Step 5: Solve for x
    x = 390,778,590,822/585,921.59
  6. Step 6: Final answer
    x = 666,946.90

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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.