Home / 1,693,817.76-2,540,666.16-431,634.72

Finding the Fourth Proportional to 1,693,817.76, 2,540,666.16 and 431,634.72

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Solution

The fourth proportional to 1,693,817.76, 2,540,666.16 and 431,634.72 is: 647,436.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,693,817.76 : 2,540,666.16 = 431,634.72 : x
  2. Step 2: Convert to fraction form
    1,693,817.76/2,540,666.16 = 431,634.72/x
  3. Step 3: Cross multiply
    1,693,817.76x = 2,540,666.16 × 431,634.72
  4. Step 4: Simplify right side
    1,693,817.76x = 1,096,639,726,585.08
  5. Step 5: Solve for x
    x = 1,096,639,726,585.08/1,693,817.76
  6. Step 6: Final answer
    x = 647,436.67

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Double scale
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1.5x scale

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.