Home / 1,440,638.43-1,988,454.48-828,853.86

Finding the Fourth Proportional to 1,440,638.43, 1,988,454.48 and 828,853.86

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Solution

The fourth proportional to 1,440,638.43, 1,988,454.48 and 828,853.86 is: 1,144,033.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,638.43 : 1,988,454.48 = 828,853.86 : x
  2. Step 2: Convert to fraction form
    1,440,638.43/1,988,454.48 = 828,853.86/x
  3. Step 3: Cross multiply
    1,440,638.43x = 1,988,454.48 × 828,853.86
  4. Step 4: Simplify right side
    1,440,638.43x = 1,648,138,171,182.29
  5. Step 5: Solve for x
    x = 1,648,138,171,182.29/1,440,638.43
  6. Step 6: Final answer
    x = 1,144,033.18

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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.