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Finding the Fourth Proportional to 548,036.40, 822,054.60 and 449,621.40

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Solution

The fourth proportional to 548,036.40, 822,054.60 and 449,621.40 is: 674,432.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,036.40 : 822,054.60 = 449,621.40 : x
  2. Step 2: Convert to fraction form
    548,036.40/822,054.60 = 449,621.40/x
  3. Step 3: Cross multiply
    548,036.40x = 822,054.60 × 449,621.40
  4. Step 4: Simplify right side
    548,036.40x = 369,613,340,128.44
  5. Step 5: Solve for x
    x = 369,613,340,128.44/548,036.40
  6. Step 6: Final answer
    x = 674,432.10

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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.