Home / 809,123.40-1,214,376.30-360,534.60

Finding the Fourth Proportional to 809,123.40, 1,214,376.30 and 360,534.60

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Solution

The fourth proportional to 809,123.40, 1,214,376.30 and 360,534.60 is: 541,109.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,123.40 : 1,214,376.30 = 360,534.60 : x
  2. Step 2: Convert to fraction form
    809,123.40/1,214,376.30 = 360,534.60/x
  3. Step 3: Cross multiply
    809,123.40x = 1,214,376.30 × 360,534.60
  4. Step 4: Simplify right side
    809,123.40x = 437,824,673,569.98
  5. Step 5: Solve for x
    x = 437,824,673,569.98/809,123.40
  6. Step 6: Final answer
    x = 541,109.89

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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.