Home / 860,226.50-1,289,533.73-291,209.60

Finding the Fourth Proportional to 860,226.50, 1,289,533.73 and 291,209.60

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Solution

The fourth proportional to 860,226.50, 1,289,533.73 and 291,209.60 is: 436,541.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,226.50 : 1,289,533.73 = 291,209.60 : x
  2. Step 2: Convert to fraction form
    860,226.50/1,289,533.73 = 291,209.60/x
  3. Step 3: Cross multiply
    860,226.50x = 1,289,533.73 × 291,209.60
  4. Step 4: Simplify right side
    860,226.50x = 375,524,593,796.09
  5. Step 5: Solve for x
    x = 375,524,593,796.09/860,226.50
  6. Step 6: Final answer
    x = 436,541.53

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Half scale
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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.