Home / 905,515.80-1,357,928.10-274,219.80

Finding the Fourth Proportional to 905,515.80, 1,357,928.10 and 274,219.80

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Solution

The fourth proportional to 905,515.80, 1,357,928.10 and 274,219.80 is: 411,225.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,515.80 : 1,357,928.10 = 274,219.80 : x
  2. Step 2: Convert to fraction form
    905,515.80/1,357,928.10 = 274,219.80/x
  3. Step 3: Cross multiply
    905,515.80x = 1,357,928.10 × 274,219.80
  4. Step 4: Simplify right side
    905,515.80x = 372,370,771,996.38
  5. Step 5: Solve for x
    x = 372,370,771,996.38/905,515.80
  6. Step 6: Final answer
    x = 411,225.04

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Double scale
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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.