Home / 809,445.30-1,117,016.75-441,909.87

Finding the Fourth Proportional to 809,445.30, 1,117,016.75 and 441,909.87

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Solution

The fourth proportional to 809,445.30, 1,117,016.75 and 441,909.87 is: 609,825.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,445.30 : 1,117,016.75 = 441,909.87 : x
  2. Step 2: Convert to fraction form
    809,445.30/1,117,016.75 = 441,909.87/x
  3. Step 3: Cross multiply
    809,445.30x = 1,117,016.75 × 441,909.87
  4. Step 4: Simplify right side
    809,445.30x = 493,620,724,570.77
  5. Step 5: Solve for x
    x = 493,620,724,570.77/809,445.30
  6. Step 6: Final answer
    x = 609,825.92

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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.