Home / 1,369,928.79-1,891,261.85-826,202.88

Finding the Fourth Proportional to 1,369,928.79, 1,891,261.85 and 826,202.88

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Solution

The fourth proportional to 1,369,928.79, 1,891,261.85 and 826,202.88 is: 1,140,618.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,928.79 : 1,891,261.85 = 826,202.88 : x
  2. Step 2: Convert to fraction form
    1,369,928.79/1,891,261.85 = 826,202.88/x
  3. Step 3: Cross multiply
    1,369,928.79x = 1,891,261.85 × 826,202.88
  4. Step 4: Simplify right side
    1,369,928.79x = 1,562,565,983,173.11
  5. Step 5: Solve for x
    x = 1,562,565,983,173.11/1,369,928.79
  6. Step 6: Final answer
    x = 1,140,618.40

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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.