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Finding the Fourth Proportional to 883,328.80, 1,325,014.88 and 322,363.20

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Solution

The fourth proportional to 883,328.80, 1,325,014.88 and 322,363.20 is: 483,552.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,328.80 : 1,325,014.88 = 322,363.20 : x
  2. Step 2: Convert to fraction form
    883,328.80/1,325,014.88 = 322,363.20/x
  3. Step 3: Cross multiply
    883,328.80x = 1,325,014.88 × 322,363.20
  4. Step 4: Simplify right side
    883,328.80x = 427,136,036,764.42
  5. Step 5: Solve for x
    x = 427,136,036,764.42/883,328.80
  6. Step 6: Final answer
    x = 483,552.71

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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.