Home / 1,276,843.70-1,915,265.55-828,946.10

Finding the Fourth Proportional to 1,276,843.70, 1,915,265.55 and 828,946.10

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Solution

The fourth proportional to 1,276,843.70, 1,915,265.55 and 828,946.10 is: 1,243,419.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,843.70 : 1,915,265.55 = 828,946.10 : x
  2. Step 2: Convert to fraction form
    1,276,843.70/1,915,265.55 = 828,946.10/x
  3. Step 3: Cross multiply
    1,276,843.70x = 1,915,265.55 × 828,946.10
  4. Step 4: Simplify right side
    1,276,843.70x = 1,587,651,908,136.86
  5. Step 5: Solve for x
    x = 1,587,651,908,136.86/1,276,843.70
  6. Step 6: Final answer
    x = 1,243,419.15

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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.