Home / 1,419,118.32-2,128,957.90-520,568.40

Finding the Fourth Proportional to 1,419,118.32, 2,128,957.90 and 520,568.40

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Solution

The fourth proportional to 1,419,118.32, 2,128,957.90 and 520,568.40 is: 780,955.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,118.32 : 2,128,957.90 = 520,568.40 : x
  2. Step 2: Convert to fraction form
    1,419,118.32/2,128,957.90 = 520,568.40/x
  3. Step 3: Cross multiply
    1,419,118.32x = 2,128,957.90 × 520,568.40
  4. Step 4: Simplify right side
    1,419,118.32x = 1,108,268,207,670.36
  5. Step 5: Solve for x
    x = 1,108,268,207,670.36/1,419,118.32
  6. Step 6: Final answer
    x = 780,955.47

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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.