Home / 1,211,998.80-1,817,998.20-413,014.80

Finding the Fourth Proportional to 1,211,998.80, 1,817,998.20 and 413,014.80

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Solution

The fourth proportional to 1,211,998.80, 1,817,998.20 and 413,014.80 is: 619,522.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,998.80 : 1,817,998.20 = 413,014.80 : x
  2. Step 2: Convert to fraction form
    1,211,998.80/1,817,998.20 = 413,014.80/x
  3. Step 3: Cross multiply
    1,211,998.80x = 1,817,998.20 × 413,014.80
  4. Step 4: Simplify right side
    1,211,998.80x = 750,860,162,973.36
  5. Step 5: Solve for x
    x = 750,860,162,973.36/1,211,998.80
  6. Step 6: Final answer
    x = 619,522.20

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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.