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Finding the Fourth Proportional to 893,570.80, 1,340,226.60 and 262,418.80

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Solution

The fourth proportional to 893,570.80, 1,340,226.60 and 262,418.80 is: 393,590.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,570.80 : 1,340,226.60 = 262,418.80 : x
  2. Step 2: Convert to fraction form
    893,570.80/1,340,226.60 = 262,418.80/x
  3. Step 3: Cross multiply
    893,570.80x = 1,340,226.60 × 262,418.80
  4. Step 4: Simplify right side
    893,570.80x = 351,700,656,100.08
  5. Step 5: Solve for x
    x = 351,700,656,100.08/893,570.80
  6. Step 6: Final answer
    x = 393,590.14

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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.