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Finding the Fourth Proportional to 1,296,746.82, 1,944,947.95 and 385,912.96

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Solution

The fourth proportional to 1,296,746.82, 1,944,947.95 and 385,912.96 is: 578,818.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,746.82 : 1,944,947.95 = 385,912.96 : x
  2. Step 2: Convert to fraction form
    1,296,746.82/1,944,947.95 = 385,912.96/x
  3. Step 3: Cross multiply
    1,296,746.82x = 1,944,947.95 × 385,912.96
  4. Step 4: Simplify right side
    1,296,746.82x = 750,580,620,430.43
  5. Step 5: Solve for x
    x = 750,580,620,430.43/1,296,746.82
  6. Step 6: Final answer
    x = 578,818.17

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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.