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Finding the Fourth Proportional to 874,054.95, 1,311,247.80 and 341,542.32

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Solution

The fourth proportional to 874,054.95, 1,311,247.80 and 341,542.32 is: 512,378.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,054.95 : 1,311,247.80 = 341,542.32 : x
  2. Step 2: Convert to fraction form
    874,054.95/1,311,247.80 = 341,542.32/x
  3. Step 3: Cross multiply
    874,054.95x = 1,311,247.80 × 341,542.32
  4. Step 4: Simplify right side
    874,054.95x = 447,846,615,706.90
  5. Step 5: Solve for x
    x = 447,846,615,706.90/874,054.95
  6. Step 6: Final answer
    x = 512,378.10

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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.