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Finding the Fourth Proportional to 1,811,332.64, 2,499,644.51 and 995,619.92

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Solution

The fourth proportional to 1,811,332.64, 2,499,644.51 and 995,619.92 is: 1,373,958.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811,332.64 : 2,499,644.51 = 995,619.92 : x
  2. Step 2: Convert to fraction form
    1,811,332.64/2,499,644.51 = 995,619.92/x
  3. Step 3: Cross multiply
    1,811,332.64x = 2,499,644.51 × 995,619.92
  4. Step 4: Simplify right side
    1,811,332.64x = 2,488,695,849,598.32
  5. Step 5: Solve for x
    x = 2,488,695,849,598.32/1,811,332.64
  6. Step 6: Final answer
    x = 1,373,958.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.