Home / 1,290,540.84-1,780,935.32-717,576

Finding the Fourth Proportional to 1,290,540.84, 1,780,935.32 and 717,576

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Solution

The fourth proportional to 1,290,540.84, 1,780,935.32 and 717,576 is: 990,248.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,540.84 : 1,780,935.32 = 717,576 : x
  2. Step 2: Convert to fraction form
    1,290,540.84/1,780,935.32 = 717,576/x
  3. Step 3: Cross multiply
    1,290,540.84x = 1,780,935.32 × 717,576
  4. Step 4: Simplify right side
    1,290,540.84x = 1,277,956,443,184.32
  5. Step 5: Solve for x
    x = 1,277,956,443,184.32/1,290,540.84
  6. Step 6: Final answer
    x = 990,248.74

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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.