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Finding the Fourth Proportional to 1,295,245.92, 1,787,451 and 714,491.28

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Solution

The fourth proportional to 1,295,245.92, 1,787,451 and 714,491.28 is: 986,004.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,245.92 : 1,787,451 = 714,491.28 : x
  2. Step 2: Convert to fraction form
    1,295,245.92/1,787,451 = 714,491.28/x
  3. Step 3: Cross multiply
    1,295,245.92x = 1,787,451 × 714,491.28
  4. Step 4: Simplify right side
    1,295,245.92x = 1,277,118,152,927.28
  5. Step 5: Solve for x
    x = 1,277,118,152,927.28/1,295,245.92
  6. Step 6: Final answer
    x = 986,004.38

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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.