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Finding the Fourth Proportional to 1,702,748.72, 2,349,808.44 and 938,829.68

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Solution

The fourth proportional to 1,702,748.72, 2,349,808.44 and 938,829.68 is: 1,295,593.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,702,748.72 : 2,349,808.44 = 938,829.68 : x
  2. Step 2: Convert to fraction form
    1,702,748.72/2,349,808.44 = 938,829.68/x
  3. Step 3: Cross multiply
    1,702,748.72x = 2,349,808.44 × 938,829.68
  4. Step 4: Simplify right side
    1,702,748.72x = 2,206,069,905,786.50
  5. Step 5: Solve for x
    x = 2,206,069,905,786.50/1,702,748.72
  6. Step 6: Final answer
    x = 1,295,593.34

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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.