Home / 621,442.05-857,984.04-425,536.36

Finding the Fourth Proportional to 621,442.05, 857,984.04 and 425,536.36

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Solution

The fourth proportional to 621,442.05, 857,984.04 and 425,536.36 is: 587,509.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,442.05 : 857,984.04 = 425,536.36 : x
  2. Step 2: Convert to fraction form
    621,442.05/857,984.04 = 425,536.36/x
  3. Step 3: Cross multiply
    621,442.05x = 857,984.04 × 425,536.36
  4. Step 4: Simplify right side
    621,442.05x = 365,103,401,047.05
  5. Step 5: Solve for x
    x = 365,103,401,047.05/621,442.05
  6. Step 6: Final answer
    x = 587,509.97

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1.5x scale

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.