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Finding the Fourth Proportional to 984,357.10, 1,476,535.65 and 978,136.30

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Solution

The fourth proportional to 984,357.10, 1,476,535.65 and 978,136.30 is: 1,467,204.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,357.10 : 1,476,535.65 = 978,136.30 : x
  2. Step 2: Convert to fraction form
    984,357.10/1,476,535.65 = 978,136.30/x
  3. Step 3: Cross multiply
    984,357.10x = 1,476,535.65 × 978,136.30
  4. Step 4: Simplify right side
    984,357.10x = 1,444,253,117,509.10
  5. Step 5: Solve for x
    x = 1,444,253,117,509.10/984,357.10
  6. Step 6: Final answer
    x = 1,467,204.45

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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.