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Finding the Fourth Proportional to 629,561.67, 868,769.80 and 343,075.60

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Solution

The fourth proportional to 629,561.67, 868,769.80 and 343,075.60 is: 473,430.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,561.67 : 868,769.80 = 343,075.60 : x
  2. Step 2: Convert to fraction form
    629,561.67/868,769.80 = 343,075.60/x
  3. Step 3: Cross multiply
    629,561.67x = 868,769.80 × 343,075.60
  4. Step 4: Simplify right side
    629,561.67x = 298,053,722,554.95
  5. Step 5: Solve for x
    x = 298,053,722,554.95/629,561.67
  6. Step 6: Final answer
    x = 473,430.54

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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.