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Finding the Fourth Proportional to 507,048.40, 699,694.92 and 297,557.20

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Solution

The fourth proportional to 507,048.40, 699,694.92 and 297,557.20 is: 410,610.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,048.40 : 699,694.92 = 297,557.20 : x
  2. Step 2: Convert to fraction form
    507,048.40/699,694.92 = 297,557.20/x
  3. Step 3: Cross multiply
    507,048.40x = 699,694.92 × 297,557.20
  4. Step 4: Simplify right side
    507,048.40x = 208,199,261,249.42
  5. Step 5: Solve for x
    x = 208,199,261,249.42/507,048.40
  6. Step 6: Final answer
    x = 410,610.23

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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.