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Finding the Fourth Proportional to 1,077,898.80, 1,616,848.20 and 741,975.60

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Solution

The fourth proportional to 1,077,898.80, 1,616,848.20 and 741,975.60 is: 1,112,963.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,898.80 : 1,616,848.20 = 741,975.60 : x
  2. Step 2: Convert to fraction form
    1,077,898.80/1,616,848.20 = 741,975.60/x
  3. Step 3: Cross multiply
    1,077,898.80x = 1,616,848.20 × 741,975.60
  4. Step 4: Simplify right side
    1,077,898.80x = 1,199,661,913,303.92
  5. Step 5: Solve for x
    x = 1,199,661,913,303.92/1,077,898.80
  6. Step 6: Final answer
    x = 1,112,963.40

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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.