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Finding the Fourth Proportional to 3,791,347,873.72, 5,687,271,347.28 and 993,384,929.32

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Solution

The fourth proportional to 3,791,347,873.72, 5,687,271,347.28 and 993,384,929.32 is: 1,490,142,776.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,791,347,873.72 : 5,687,271,347.28 = 993,384,929.32 : x
  2. Step 2: Convert to fraction form
    3,791,347,873.72/5,687,271,347.28 = 993,384,929.32/x
  3. Step 3: Cross multiply
    3,791,347,873.72x = 5,687,271,347.28 × 993,384,929.32
  4. Step 4: Simplify right side
    3,791,347,873.72x = 5,649,649,645,341,404,160
  5. Step 5: Solve for x
    x = 5,649,649,645,341,404,160/3,791,347,873.72
  6. Step 6: Final answer
    x = 1,490,142,776.00

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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.