Home / 925,538.40-1,388,307.60-427,874.40

Finding the Fourth Proportional to 925,538.40, 1,388,307.60 and 427,874.40

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Solution

The fourth proportional to 925,538.40, 1,388,307.60 and 427,874.40 is: 641,811.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,538.40 : 1,388,307.60 = 427,874.40 : x
  2. Step 2: Convert to fraction form
    925,538.40/1,388,307.60 = 427,874.40/x
  3. Step 3: Cross multiply
    925,538.40x = 1,388,307.60 × 427,874.40
  4. Step 4: Simplify right side
    925,538.40x = 594,021,281,365.44
  5. Step 5: Solve for x
    x = 594,021,281,365.44/925,538.40
  6. Step 6: Final answer
    x = 641,811.60

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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.