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Finding the Fourth Proportional to 1,147,496.74, 1,719,670.45 and 726,018.10

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Solution

The fourth proportional to 1,147,496.74, 1,719,670.45 and 726,018.10 is: 1,088,030.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,496.74 : 1,719,670.45 = 726,018.10 : x
  2. Step 2: Convert to fraction form
    1,147,496.74/1,719,670.45 = 726,018.10/x
  3. Step 3: Cross multiply
    1,147,496.74x = 1,719,670.45 × 726,018.10
  4. Step 4: Simplify right side
    1,147,496.74x = 1,248,511,869,343.49
  5. Step 5: Solve for x
    x = 1,248,511,869,343.49/1,147,496.74
  6. Step 6: Final answer
    x = 1,088,030.87

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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.