Home / 911,937.72-1,257,821.34-640,066.26

Finding the Fourth Proportional to 911,937.72, 1,257,821.34 and 640,066.26

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Solution

The fourth proportional to 911,937.72, 1,257,821.34 and 640,066.26 is: 882,833.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,937.72 : 1,257,821.34 = 640,066.26 : x
  2. Step 2: Convert to fraction form
    911,937.72/1,257,821.34 = 640,066.26/x
  3. Step 3: Cross multiply
    911,937.72x = 1,257,821.34 × 640,066.26
  4. Step 4: Simplify right side
    911,937.72x = 805,089,000,841.99
  5. Step 5: Solve for x
    x = 805,089,000,841.99/911,937.72
  6. Step 6: Final answer
    x = 882,833.32

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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.