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Finding the Fourth Proportional to 1,168,339.20, 1,748,620.80 and 847,579.20

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Solution

The fourth proportional to 1,168,339.20, 1,748,620.80 and 847,579.20 is: 1,268,548.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168,339.20 : 1,748,620.80 = 847,579.20 : x
  2. Step 2: Convert to fraction form
    1,168,339.20/1,748,620.80 = 847,579.20/x
  3. Step 3: Cross multiply
    1,168,339.20x = 1,748,620.80 × 847,579.20
  4. Step 4: Simplify right side
    1,168,339.20x = 1,482,094,618,767.36
  5. Step 5: Solve for x
    x = 1,482,094,618,767.36/1,168,339.20
  6. Step 6: Final answer
    x = 1,268,548.23

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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.