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Finding the Fourth Proportional to 1,945,256.63, 2,917,375.61 and 578,662.12

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Solution

The fourth proportional to 1,945,256.63, 2,917,375.61 and 578,662.12 is: 867,841.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945,256.63 : 2,917,375.61 = 578,662.12 : x
  2. Step 2: Convert to fraction form
    1,945,256.63/2,917,375.61 = 578,662.12/x
  3. Step 3: Cross multiply
    1,945,256.63x = 2,917,375.61 × 578,662.12
  4. Step 4: Simplify right side
    1,945,256.63x = 1,688,174,749,472.11
  5. Step 5: Solve for x
    x = 1,688,174,749,472.11/1,945,256.63
  6. Step 6: Final answer
    x = 867,841.67

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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.