Home / 1,284,411.97-1,772,528.52-711,505.45

Finding the Fourth Proportional to 1,284,411.97, 1,772,528.52 and 711,505.45

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Solution

The fourth proportional to 1,284,411.97, 1,772,528.52 and 711,505.45 is: 981,899.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,411.97 : 1,772,528.52 = 711,505.45 : x
  2. Step 2: Convert to fraction form
    1,284,411.97/1,772,528.52 = 711,505.45/x
  3. Step 3: Cross multiply
    1,284,411.97x = 1,772,528.52 × 711,505.45
  4. Step 4: Simplify right side
    1,284,411.97x = 1,261,163,702,260.43
  5. Step 5: Solve for x
    x = 1,261,163,702,260.43/1,284,411.97
  6. Step 6: Final answer
    x = 981,899.68

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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.