Home / 1,685,440.31-2,528,412.17-620,401.38

Finding the Fourth Proportional to 1,685,440.31, 2,528,412.17 and 620,401.38

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Solution

The fourth proportional to 1,685,440.31, 2,528,412.17 and 620,401.38 is: 930,694.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,685,440.31 : 2,528,412.17 = 620,401.38 : x
  2. Step 2: Convert to fraction form
    1,685,440.31/2,528,412.17 = 620,401.38/x
  3. Step 3: Cross multiply
    1,685,440.31x = 2,528,412.17 × 620,401.38
  4. Step 4: Simplify right side
    1,685,440.31x = 1,568,630,386,893.24
  5. Step 5: Solve for x
    x = 1,568,630,386,893.24/1,685,440.31
  6. Step 6: Final answer
    x = 930,694.72

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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.