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Finding the Fourth Proportional to 1,155,621.22, 1,733,928.06 and 446,147.48

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Solution

The fourth proportional to 1,155,621.22, 1,733,928.06 and 446,147.48 is: 669,412.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,621.22 : 1,733,928.06 = 446,147.48 : x
  2. Step 2: Convert to fraction form
    1,155,621.22/1,733,928.06 = 446,147.48/x
  3. Step 3: Cross multiply
    1,155,621.22x = 1,733,928.06 × 446,147.48
  4. Step 4: Simplify right side
    1,155,621.22x = 773,587,634,470.29
  5. Step 5: Solve for x
    x = 773,587,634,470.29/1,155,621.22
  6. Step 6: Final answer
    x = 669,412.80

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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.