Home / 693,021.06-1,039,619.07-243,636.30

Finding the Fourth Proportional to 693,021.06, 1,039,619.07 and 243,636.30

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Solution

The fourth proportional to 693,021.06, 1,039,619.07 and 243,636.30 is: 365,485.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,021.06 : 1,039,619.07 = 243,636.30 : x
  2. Step 2: Convert to fraction form
    693,021.06/1,039,619.07 = 243,636.30/x
  3. Step 3: Cross multiply
    693,021.06x = 1,039,619.07 × 243,636.30
  4. Step 4: Simplify right side
    693,021.06x = 253,288,943,624.24
  5. Step 5: Solve for x
    x = 253,288,943,624.24/693,021.06
  6. Step 6: Final answer
    x = 365,485.20

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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.