Home / 1,287,013.07-1,776,078.27-714,051.88

Finding the Fourth Proportional to 1,287,013.07, 1,776,078.27 and 714,051.88

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Solution

The fourth proportional to 1,287,013.07, 1,776,078.27 and 714,051.88 is: 985,391.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,013.07 : 1,776,078.27 = 714,051.88 : x
  2. Step 2: Convert to fraction form
    1,287,013.07/1,776,078.27 = 714,051.88/x
  3. Step 3: Cross multiply
    1,287,013.07x = 1,776,078.27 × 714,051.88
  4. Step 4: Simplify right side
    1,287,013.07x = 1,268,212,023,280.45
  5. Step 5: Solve for x
    x = 1,268,212,023,280.45/1,287,013.07
  6. Step 6: Final answer
    x = 985,391.72

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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.