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Finding the Fourth Proportional to 869,114.40, 1,302,116.40 and 735,367.20

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Solution

The fourth proportional to 869,114.40, 1,302,116.40 and 735,367.20 is: 1,101,734.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,114.40 : 1,302,116.40 = 735,367.20 : x
  2. Step 2: Convert to fraction form
    869,114.40/1,302,116.40 = 735,367.20/x
  3. Step 3: Cross multiply
    869,114.40x = 1,302,116.40 × 735,367.20
  4. Step 4: Simplify right side
    869,114.40x = 957,533,691,142.08
  5. Step 5: Solve for x
    x = 957,533,691,142.08/869,114.40
  6. Step 6: Final answer
    x = 1,101,734.93

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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.