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Finding the Fourth Proportional to 1,697,517.15, 2,348,742.15 and 1,480,179.03

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Solution

The fourth proportional to 1,697,517.15, 2,348,742.15 and 1,480,179.03 is: 2,048,025.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,697,517.15 : 2,348,742.15 = 1,480,179.03 : x
  2. Step 2: Convert to fraction form
    1,697,517.15/2,348,742.15 = 1,480,179.03/x
  3. Step 3: Cross multiply
    1,697,517.15x = 2,348,742.15 × 1,480,179.03
  4. Step 4: Simplify right side
    1,697,517.15x = 3,476,558,877,307.11
  5. Step 5: Solve for x
    x = 3,476,558,877,307.11/1,697,517.15
  6. Step 6: Final answer
    x = 2,048,025.78

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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.