Home / 818,529.60-1,227,794.40-419,037.60

Finding the Fourth Proportional to 818,529.60, 1,227,794.40 and 419,037.60

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Solution

The fourth proportional to 818,529.60, 1,227,794.40 and 419,037.60 is: 628,556.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,529.60 : 1,227,794.40 = 419,037.60 : x
  2. Step 2: Convert to fraction form
    818,529.60/1,227,794.40 = 419,037.60/x
  3. Step 3: Cross multiply
    818,529.60x = 1,227,794.40 × 419,037.60
  4. Step 4: Simplify right side
    818,529.60x = 514,492,018,669.44
  5. Step 5: Solve for x
    x = 514,492,018,669.44/818,529.60
  6. Step 6: Final answer
    x = 628,556.40

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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.