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Finding the Fourth Proportional to 1,254,771.02, 1,731,594.94 and 681,811.20

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Solution

The fourth proportional to 1,254,771.02, 1,731,594.94 and 681,811.20 is: 940,905.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,254,771.02 : 1,731,594.94 = 681,811.20 : x
  2. Step 2: Convert to fraction form
    1,254,771.02/1,731,594.94 = 681,811.20/x
  3. Step 3: Cross multiply
    1,254,771.02x = 1,731,594.94 × 681,811.20
  4. Step 4: Simplify right side
    1,254,771.02x = 1,180,620,823,955.33
  5. Step 5: Solve for x
    x = 1,180,620,823,955.33/1,254,771.02
  6. Step 6: Final answer
    x = 940,905.40

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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.