Home / 1,209,628.90-1,814,443.35-411,811.30

Finding the Fourth Proportional to 1,209,628.90, 1,814,443.35 and 411,811.30

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Solution

The fourth proportional to 1,209,628.90, 1,814,443.35 and 411,811.30 is: 617,716.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,628.90 : 1,814,443.35 = 411,811.30 : x
  2. Step 2: Convert to fraction form
    1,209,628.90/1,814,443.35 = 411,811.30/x
  3. Step 3: Cross multiply
    1,209,628.90x = 1,814,443.35 × 411,811.30
  4. Step 4: Simplify right side
    1,209,628.90x = 747,208,274,739.86
  5. Step 5: Solve for x
    x = 747,208,274,739.86/1,209,628.90
  6. Step 6: Final answer
    x = 617,716.95

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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.