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Finding the Fourth Proportional to 630,536.40, 944,249.40 and 419,029.20

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Solution

The fourth proportional to 630,536.40, 944,249.40 and 419,029.20 is: 627,510.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,536.40 : 944,249.40 = 419,029.20 : x
  2. Step 2: Convert to fraction form
    630,536.40/944,249.40 = 419,029.20/x
  3. Step 3: Cross multiply
    630,536.40x = 944,249.40 × 419,029.20
  4. Step 4: Simplify right side
    630,536.40x = 395,668,070,682.48
  5. Step 5: Solve for x
    x = 395,668,070,682.48/630,536.40
  6. Step 6: Final answer
    x = 627,510.28

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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.