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Finding the Fourth Proportional to 1,857,607.02, 2,786,412.96 and 509,788.08

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Solution

The fourth proportional to 1,857,607.02, 2,786,412.96 and 509,788.08 is: 764,682.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,857,607.02 : 2,786,412.96 = 509,788.08 : x
  2. Step 2: Convert to fraction form
    1,857,607.02/2,786,412.96 = 509,788.08/x
  3. Step 3: Cross multiply
    1,857,607.02x = 2,786,412.96 × 509,788.08
  4. Step 4: Simplify right side
    1,857,607.02x = 1,420,480,112,965.52
  5. Step 5: Solve for x
    x = 1,420,480,112,965.52/1,857,607.02
  6. Step 6: Final answer
    x = 764,682.79

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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.