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Finding the Fourth Proportional to 1,956,764.20, 2,935,437.90 and 694,486.12

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Solution

The fourth proportional to 1,956,764.20, 2,935,437.90 and 694,486.12 is: 1,041,832.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,956,764.20 : 2,935,437.90 = 694,486.12 : x
  2. Step 2: Convert to fraction form
    1,956,764.20/2,935,437.90 = 694,486.12/x
  3. Step 3: Cross multiply
    1,956,764.20x = 2,935,437.90 × 694,486.12
  4. Step 4: Simplify right side
    1,956,764.20x = 2,038,620,877,671.95
  5. Step 5: Solve for x
    x = 2,038,620,877,671.95/1,956,764.20
  6. Step 6: Final answer
    x = 1,041,832.67

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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.