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Finding the Fourth Proportional to 3,270,841.06, 4,905,916.43 and 874,927.46

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Solution

The fourth proportional to 3,270,841.06, 4,905,916.43 and 874,927.46 is: 1,312,298.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,270,841.06 : 4,905,916.43 = 874,927.46 : x
  2. Step 2: Convert to fraction form
    3,270,841.06/4,905,916.43 = 874,927.46/x
  3. Step 3: Cross multiply
    3,270,841.06x = 4,905,916.43 × 874,927.46
  4. Step 4: Simplify right side
    3,270,841.06x = 4,292,321,001,072.17
  5. Step 5: Solve for x
    x = 4,292,321,001,072.17/3,270,841.06
  6. Step 6: Final answer
    x = 1,312,298.86

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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.