Home / 414,000.85-621,001.27-133,518.10

Finding the Fourth Proportional to 414,000.85, 621,001.27 and 133,518.10

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Solution

The fourth proportional to 414,000.85, 621,001.27 and 133,518.10 is: 200,277.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,000.85 : 621,001.27 = 133,518.10 : x
  2. Step 2: Convert to fraction form
    414,000.85/621,001.27 = 133,518.10/x
  3. Step 3: Cross multiply
    414,000.85x = 621,001.27 × 133,518.10
  4. Step 4: Simplify right side
    414,000.85x = 82,914,909,667.99
  5. Step 5: Solve for x
    x = 82,914,909,667.99/414,000.85
  6. Step 6: Final answer
    x = 200,277.15

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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.