Home / 1,312,504.32-1,968,963-459,836.76

Finding the Fourth Proportional to 1,312,504.32, 1,968,963 and 459,836.76

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Solution

The fourth proportional to 1,312,504.32, 1,968,963 and 459,836.76 is: 689,827.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,504.32 : 1,968,963 = 459,836.76 : x
  2. Step 2: Convert to fraction form
    1,312,504.32/1,968,963 = 459,836.76/x
  3. Step 3: Cross multiply
    1,312,504.32x = 1,968,963 × 459,836.76
  4. Step 4: Simplify right side
    1,312,504.32x = 905,401,566,479.88
  5. Step 5: Solve for x
    x = 905,401,566,479.88/1,312,504.32
  6. Step 6: Final answer
    x = 689,827.49

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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.