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Finding the Fourth Proportional to 713,930.02, 985,607.16 and 551,428.36

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Solution

The fourth proportional to 713,930.02, 985,607.16 and 551,428.36 is: 761,267.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,930.02 : 985,607.16 = 551,428.36 : x
  2. Step 2: Convert to fraction form
    713,930.02/985,607.16 = 551,428.36/x
  3. Step 3: Cross multiply
    713,930.02x = 985,607.16 × 551,428.36
  4. Step 4: Simplify right side
    713,930.02x = 543,491,739,843.06
  5. Step 5: Solve for x
    x = 543,491,739,843.06/713,930.02
  6. Step 6: Final answer
    x = 761,267.53

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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.