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Finding the Fourth Proportional to 4,532,653.09, 6,798,979.64 and 1,499,203.90

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Solution

The fourth proportional to 4,532,653.09, 6,798,979.64 and 1,499,203.90 is: 2,248,805.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,532,653.09 : 6,798,979.64 = 1,499,203.90 : x
  2. Step 2: Convert to fraction form
    4,532,653.09/6,798,979.64 = 1,499,203.90/x
  3. Step 3: Cross multiply
    4,532,653.09x = 6,798,979.64 × 1,499,203.90
  4. Step 4: Simplify right side
    4,532,653.09x = 10,193,056,784,812.58
  5. Step 5: Solve for x
    x = 10,193,056,784,812.58/4,532,653.09
  6. Step 6: Final answer
    x = 2,248,805.85

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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.