Home / 818,670.40-1,228,005.60-617,903.80

Finding the Fourth Proportional to 818,670.40, 1,228,005.60 and 617,903.80

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Solution

The fourth proportional to 818,670.40, 1,228,005.60 and 617,903.80 is: 926,855.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,670.40 : 1,228,005.60 = 617,903.80 : x
  2. Step 2: Convert to fraction form
    818,670.40/1,228,005.60 = 617,903.80/x
  3. Step 3: Cross multiply
    818,670.40x = 1,228,005.60 × 617,903.80
  4. Step 4: Simplify right side
    818,670.40x = 758,789,326,661.28
  5. Step 5: Solve for x
    x = 758,789,326,661.28/818,670.40
  6. Step 6: Final answer
    x = 926,855.70

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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.