Home / 1,211,336.71-1,671,631.07-688,043.65

Finding the Fourth Proportional to 1,211,336.71, 1,671,631.07 and 688,043.65

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Solution

The fourth proportional to 1,211,336.71, 1,671,631.07 and 688,043.65 is: 949,492.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,336.71 : 1,671,631.07 = 688,043.65 : x
  2. Step 2: Convert to fraction form
    1,211,336.71/1,671,631.07 = 688,043.65/x
  3. Step 3: Cross multiply
    1,211,336.71x = 1,671,631.07 × 688,043.65
  4. Step 4: Simplify right side
    1,211,336.71x = 1,150,155,135,236.91
  5. Step 5: Solve for x
    x = 1,150,155,135,236.91/1,211,336.71
  6. Step 6: Final answer
    x = 949,492.51

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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.