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Finding the Fourth Proportional to 404,329.20, 606,493.80 and 384,646.20

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Solution

The fourth proportional to 404,329.20, 606,493.80 and 384,646.20 is: 576,969.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,329.20 : 606,493.80 = 384,646.20 : x
  2. Step 2: Convert to fraction form
    404,329.20/606,493.80 = 384,646.20/x
  3. Step 3: Cross multiply
    404,329.20x = 606,493.80 × 384,646.20
  4. Step 4: Simplify right side
    404,329.20x = 233,285,535,493.56
  5. Step 5: Solve for x
    x = 233,285,535,493.56/404,329.20
  6. Step 6: Final answer
    x = 576,969.30

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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.