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Finding the Fourth Proportional to 867,485.99, 1,300,326.84 and 335,372.49

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Solution

The fourth proportional to 867,485.99, 1,300,326.84 and 335,372.49 is: 502,709.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,485.99 : 1,300,326.84 = 335,372.49 : x
  2. Step 2: Convert to fraction form
    867,485.99/1,300,326.84 = 335,372.49/x
  3. Step 3: Cross multiply
    867,485.99x = 1,300,326.84 × 335,372.49
  4. Step 4: Simplify right side
    867,485.99x = 436,093,850,144.63
  5. Step 5: Solve for x
    x = 436,093,850,144.63/867,485.99
  6. Step 6: Final answer
    x = 502,709.97

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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.