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Finding the Fourth Proportional to 412,341.74, 618,528.95 and 196,148.54

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Solution

The fourth proportional to 412,341.74, 618,528.95 and 196,148.54 is: 294,230.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,341.74 : 618,528.95 = 196,148.54 : x
  2. Step 2: Convert to fraction form
    412,341.74/618,528.95 = 196,148.54/x
  3. Step 3: Cross multiply
    412,341.74x = 618,528.95 × 196,148.54
  4. Step 4: Simplify right side
    412,341.74x = 121,323,549,509.49
  5. Step 5: Solve for x
    x = 121,323,549,509.49/412,341.74
  6. Step 6: Final answer
    x = 294,230.58

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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.