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Finding the Fourth Proportional to 3,168,561.76, 4,752,764.16 and 924,719.20

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Solution

The fourth proportional to 3,168,561.76, 4,752,764.16 and 924,719.20 is: 1,387,055.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168,561.76 : 4,752,764.16 = 924,719.20 : x
  2. Step 2: Convert to fraction form
    3,168,561.76/4,752,764.16 = 924,719.20/x
  3. Step 3: Cross multiply
    3,168,561.76x = 4,752,764.16 × 924,719.20
  4. Step 4: Simplify right side
    3,168,561.76x = 4,394,972,271,823.87
  5. Step 5: Solve for x
    x = 4,394,972,271,823.87/3,168,561.76
  6. Step 6: Final answer
    x = 1,387,055.90

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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.