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Finding the Fourth Proportional to 1,168,512, 1,612,546.56 and 631,968

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Solution

The fourth proportional to 1,168,512, 1,612,546.56 and 631,968 is: 872,115.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168,512 : 1,612,546.56 = 631,968 : x
  2. Step 2: Convert to fraction form
    1,168,512/1,612,546.56 = 631,968/x
  3. Step 3: Cross multiply
    1,168,512x = 1,612,546.56 × 631,968
  4. Step 4: Simplify right side
    1,168,512x = 1,019,077,824,430.08
  5. Step 5: Solve for x
    x = 1,019,077,824,430.08/1,168,512
  6. Step 6: Final answer
    x = 872,115.84

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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.