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Finding the Fourth Proportional to 1,788,490.56, 2,683,623.16 and 708,980.29

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Solution

The fourth proportional to 1,788,490.56, 2,683,623.16 and 708,980.29 is: 1,063,822.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788,490.56 : 2,683,623.16 = 708,980.29 : x
  2. Step 2: Convert to fraction form
    1,788,490.56/2,683,623.16 = 708,980.29/x
  3. Step 3: Cross multiply
    1,788,490.56x = 2,683,623.16 × 708,980.29
  4. Step 4: Simplify right side
    1,788,490.56x = 1,902,635,936,497.03
  5. Step 5: Solve for x
    x = 1,902,635,936,497.03/1,788,490.56
  6. Step 6: Final answer
    x = 1,063,822.19

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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.