Home / 1,089,213.65-1,503,134.16-605,779.01

Finding the Fourth Proportional to 1,089,213.65, 1,503,134.16 and 605,779.01

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Solution

The fourth proportional to 1,089,213.65, 1,503,134.16 and 605,779.01 is: 835,985.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,213.65 : 1,503,134.16 = 605,779.01 : x
  2. Step 2: Convert to fraction form
    1,089,213.65/1,503,134.16 = 605,779.01/x
  3. Step 3: Cross multiply
    1,089,213.65x = 1,503,134.16 × 605,779.01
  4. Step 4: Simplify right side
    1,089,213.65x = 910,567,120,313.09
  5. Step 5: Solve for x
    x = 910,567,120,313.09/1,089,213.65
  6. Step 6: Final answer
    x = 835,985.78

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.