Home / 1,258,686.41-1,737,112.64-768,628.85

Finding the Fourth Proportional to 1,258,686.41, 1,737,112.64 and 768,628.85

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Solution

The fourth proportional to 1,258,686.41, 1,737,112.64 and 768,628.85 is: 1,060,784.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,686.41 : 1,737,112.64 = 768,628.85 : x
  2. Step 2: Convert to fraction form
    1,258,686.41/1,737,112.64 = 768,628.85/x
  3. Step 3: Cross multiply
    1,258,686.41x = 1,737,112.64 × 768,628.85
  4. Step 4: Simplify right side
    1,258,686.41x = 1,335,194,878,274.96
  5. Step 5: Solve for x
    x = 1,335,194,878,274.96/1,258,686.41
  6. Step 6: Final answer
    x = 1,060,784.38

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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.