Home / 414,217.06-621,333.32-129,901.32

Finding the Fourth Proportional to 414,217.06, 621,333.32 and 129,901.32

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Solution

The fourth proportional to 414,217.06, 621,333.32 and 129,901.32 is: 194,854.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,217.06 : 621,333.32 = 129,901.32 : x
  2. Step 2: Convert to fraction form
    414,217.06/621,333.32 = 129,901.32/x
  3. Step 3: Cross multiply
    414,217.06x = 621,333.32 × 129,901.32
  4. Step 4: Simplify right side
    414,217.06x = 80,712,017,778.48
  5. Step 5: Solve for x
    x = 80,712,017,778.48/414,217.06
  6. Step 6: Final answer
    x = 194,854.40

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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.