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Finding the Fourth Proportional to 312,068.40, 468,102.60 and 264,829.20

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Solution

The fourth proportional to 312,068.40, 468,102.60 and 264,829.20 is: 397,243.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,068.40 : 468,102.60 = 264,829.20 : x
  2. Step 2: Convert to fraction form
    312,068.40/468,102.60 = 264,829.20/x
  3. Step 3: Cross multiply
    312,068.40x = 468,102.60 × 264,829.20
  4. Step 4: Simplify right side
    312,068.40x = 123,967,237,075.92
  5. Step 5: Solve for x
    x = 123,967,237,075.92/312,068.40
  6. Step 6: Final answer
    x = 397,243.80

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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.