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Finding the Fourth Proportional to 578,114.70, 867,172.05 and 578,114.70

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Solution

The fourth proportional to 578,114.70, 867,172.05 and 578,114.70 is: 867,172.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,114.70 : 867,172.05 = 578,114.70 : x
  2. Step 2: Convert to fraction form
    578,114.70/867,172.05 = 578,114.70/x
  3. Step 3: Cross multiply
    578,114.70x = 867,172.05 × 578,114.70
  4. Step 4: Simplify right side
    578,114.70x = 501,324,909,534.14
  5. Step 5: Solve for x
    x = 501,324,909,534.14/578,114.70
  6. Step 6: Final answer
    x = 867,172.05

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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.