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Finding the Fourth Proportional to 1,322,566.41, 1,984,411.31 and 722,826.89

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Solution

The fourth proportional to 1,322,566.41, 1,984,411.31 and 722,826.89 is: 1,084,547.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,322,566.41 : 1,984,411.31 = 722,826.89 : x
  2. Step 2: Convert to fraction form
    1,322,566.41/1,984,411.31 = 722,826.89/x
  3. Step 3: Cross multiply
    1,322,566.41x = 1,984,411.31 × 722,826.89
  4. Step 4: Simplify right side
    1,322,566.41x = 1,434,385,842,151.93
  5. Step 5: Solve for x
    x = 1,434,385,842,151.93/1,322,566.41
  6. Step 6: Final answer
    x = 1,084,547.31

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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.