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Finding the Fourth Proportional to 406,933.20, 610,399.80 and 346,798.80

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Solution

The fourth proportional to 406,933.20, 610,399.80 and 346,798.80 is: 520,198.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,933.20 : 610,399.80 = 346,798.80 : x
  2. Step 2: Convert to fraction form
    406,933.20/610,399.80 = 346,798.80/x
  3. Step 3: Cross multiply
    406,933.20x = 610,399.80 × 346,798.80
  4. Step 4: Simplify right side
    406,933.20x = 211,685,918,160.24
  5. Step 5: Solve for x
    x = 211,685,918,160.24/406,933.20
  6. Step 6: Final answer
    x = 520,198.20

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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.