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Finding the Fourth Proportional to 1,014,728.76, 1,400,336 and 612,243

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Solution

The fourth proportional to 1,014,728.76, 1,400,336 and 612,243 is: 844,901.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,014,728.76 : 1,400,336 = 612,243 : x
  2. Step 2: Convert to fraction form
    1,014,728.76/1,400,336 = 612,243/x
  3. Step 3: Cross multiply
    1,014,728.76x = 1,400,336 × 612,243
  4. Step 4: Simplify right side
    1,014,728.76x = 857,345,913,648
  5. Step 5: Solve for x
    x = 857,345,913,648/1,014,728.76
  6. Step 6: Final answer
    x = 844,901.56

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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.