Home / 450,421.19-621,575.82-246,469.85

Finding the Fourth Proportional to 450,421.19, 621,575.82 and 246,469.85

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Solution

The fourth proportional to 450,421.19, 621,575.82 and 246,469.85 is: 340,125.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,421.19 : 621,575.82 = 246,469.85 : x
  2. Step 2: Convert to fraction form
    450,421.19/621,575.82 = 246,469.85/x
  3. Step 3: Cross multiply
    450,421.19x = 621,575.82 × 246,469.85
  4. Step 4: Simplify right side
    450,421.19x = 153,199,699,119.03
  5. Step 5: Solve for x
    x = 153,199,699,119.03/450,421.19
  6. Step 6: Final answer
    x = 340,125.43

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1.5x scale

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.