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Finding the Fourth Proportional to 1,870,675.03, 2,579,809.93 and 1,225,861.03

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Solution

The fourth proportional to 1,870,675.03, 2,579,809.93 and 1,225,861.03 is: 1,690,560.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,870,675.03 : 2,579,809.93 = 1,225,861.03 : x
  2. Step 2: Convert to fraction form
    1,870,675.03/2,579,809.93 = 1,225,861.03/x
  3. Step 3: Cross multiply
    1,870,675.03x = 2,579,809.93 × 1,225,861.03
  4. Step 4: Simplify right side
    1,870,675.03x = 3,162,488,457,994.03
  5. Step 5: Solve for x
    x = 3,162,488,457,994.03/1,870,675.03
  6. Step 6: Final answer
    x = 1,690,560.04

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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.