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Finding the Fourth Proportional to 978,368.70, 1,467,553.05 and 883,890.30

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Solution

The fourth proportional to 978,368.70, 1,467,553.05 and 883,890.30 is: 1,325,835.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,368.70 : 1,467,553.05 = 883,890.30 : x
  2. Step 2: Convert to fraction form
    978,368.70/1,467,553.05 = 883,890.30/x
  3. Step 3: Cross multiply
    978,368.70x = 1,467,553.05 × 883,890.30
  4. Step 4: Simplify right side
    978,368.70x = 1,297,155,905,630.42
  5. Step 5: Solve for x
    x = 1,297,155,905,630.42/978,368.70
  6. Step 6: Final answer
    x = 1,325,835.45

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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.