Home / 1,093,564.65-1,640,346.98-978,419.10

Finding the Fourth Proportional to 1,093,564.65, 1,640,346.98 and 978,419.10

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Solution

The fourth proportional to 1,093,564.65, 1,640,346.98 and 978,419.10 is: 1,467,628.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093,564.65 : 1,640,346.98 = 978,419.10 : x
  2. Step 2: Convert to fraction form
    1,093,564.65/1,640,346.98 = 978,419.10/x
  3. Step 3: Cross multiply
    1,093,564.65x = 1,640,346.98 × 978,419.10
  4. Step 4: Simplify right side
    1,093,564.65x = 1,604,946,810,967.22
  5. Step 5: Solve for x
    x = 1,604,946,810,967.22/1,093,564.65
  6. Step 6: Final answer
    x = 1,467,628.65

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Double scale
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Similar ratio
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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.