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Finding the Fourth Proportional to 1,976,378.08, 2,964,742.16 and 556,446.48

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Solution

The fourth proportional to 1,976,378.08, 2,964,742.16 and 556,446.48 is: 834,719.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976,378.08 : 2,964,742.16 = 556,446.48 : x
  2. Step 2: Convert to fraction form
    1,976,378.08/2,964,742.16 = 556,446.48/x
  3. Step 3: Cross multiply
    1,976,378.08x = 2,964,742.16 × 556,446.48
  4. Step 4: Simplify right side
    1,976,378.08x = 1,649,720,339,039.60
  5. Step 5: Solve for x
    x = 1,649,720,339,039.60/1,976,378.08
  6. Step 6: Final answer
    x = 834,719.00

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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.