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Finding the Fourth Proportional to 554,881.20, 831,751.56 and 239,071.92

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Solution

The fourth proportional to 554,881.20, 831,751.56 and 239,071.92 is: 358,362.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,881.20 : 831,751.56 = 239,071.92 : x
  2. Step 2: Convert to fraction form
    554,881.20/831,751.56 = 239,071.92/x
  3. Step 3: Cross multiply
    554,881.20x = 831,751.56 × 239,071.92
  4. Step 4: Simplify right side
    554,881.20x = 198,848,442,412.20
  5. Step 5: Solve for x
    x = 198,848,442,412.20/554,881.20
  6. Step 6: Final answer
    x = 358,362.19

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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.