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Finding the Fourth Proportional to 448,518.72, 619,022.40 and 295,533.12

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Solution

The fourth proportional to 448,518.72, 619,022.40 and 295,533.12 is: 407,879.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,518.72 : 619,022.40 = 295,533.12 : x
  2. Step 2: Convert to fraction form
    448,518.72/619,022.40 = 295,533.12/x
  3. Step 3: Cross multiply
    448,518.72x = 619,022.40 × 295,533.12
  4. Step 4: Simplify right side
    448,518.72x = 182,941,621,221.89
  5. Step 5: Solve for x
    x = 182,941,621,221.89/448,518.72
  6. Step 6: Final answer
    x = 407,879.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.