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Finding the Fourth Proportional to 414,032.40, 621,048.60 and 344,048.40

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Solution

The fourth proportional to 414,032.40, 621,048.60 and 344,048.40 is: 516,072.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,032.40 : 621,048.60 = 344,048.40 : x
  2. Step 2: Convert to fraction form
    414,032.40/621,048.60 = 344,048.40/x
  3. Step 3: Cross multiply
    414,032.40x = 621,048.60 × 344,048.40
  4. Step 4: Simplify right side
    414,032.40x = 213,670,777,152.24
  5. Step 5: Solve for x
    x = 213,670,777,152.24/414,032.40
  6. Step 6: Final answer
    x = 516,072.60

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1.5x scale

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.