Home / 1,211,661.30-1,817,819.10-370,190.10

Finding the Fourth Proportional to 1,211,661.30, 1,817,819.10 and 370,190.10

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Solution

The fourth proportional to 1,211,661.30, 1,817,819.10 and 370,190.10 is: 555,385.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,661.30 : 1,817,819.10 = 370,190.10 : x
  2. Step 2: Convert to fraction form
    1,211,661.30/1,817,819.10 = 370,190.10/x
  3. Step 3: Cross multiply
    1,211,661.30x = 1,817,819.10 × 370,190.10
  4. Step 4: Simplify right side
    1,211,661.30x = 672,938,634,410.91
  5. Step 5: Solve for x
    x = 672,938,634,410.91/1,211,661.30
  6. Step 6: Final answer
    x = 555,385.10

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Double scale
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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.