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Finding the Fourth Proportional to 713,172.19, 1,069,807.51 and 207,737.37

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Solution

The fourth proportional to 713,172.19, 1,069,807.51 and 207,737.37 is: 311,620.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,172.19 : 1,069,807.51 = 207,737.37 : x
  2. Step 2: Convert to fraction form
    713,172.19/1,069,807.51 = 207,737.37/x
  3. Step 3: Cross multiply
    713,172.19x = 1,069,807.51 × 207,737.37
  4. Step 4: Simplify right side
    713,172.19x = 222,238,998,533.65
  5. Step 5: Solve for x
    x = 222,238,998,533.65/713,172.19
  6. Step 6: Final answer
    x = 311,620.39

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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.