Home / 439,430.81-659,146.23-416,992.19

Finding the Fourth Proportional to 439,430.81, 659,146.23 and 416,992.19

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Solution

The fourth proportional to 439,430.81, 659,146.23 and 416,992.19 is: 625,488.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,430.81 : 659,146.23 = 416,992.19 : x
  2. Step 2: Convert to fraction form
    439,430.81/659,146.23 = 416,992.19/x
  3. Step 3: Cross multiply
    439,430.81x = 659,146.23 × 416,992.19
  4. Step 4: Simplify right side
    439,430.81x = 274,858,826,682.21
  5. Step 5: Solve for x
    x = 274,858,826,682.21/439,430.81
  6. Step 6: Final answer
    x = 625,488.30

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Double scale
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Similar ratio
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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.