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Finding the Fourth Proportional to 624,996.80, 862,548.60 and 353,114.60

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Solution

The fourth proportional to 624,996.80, 862,548.60 and 353,114.60 is: 487,328.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,996.80 : 862,548.60 = 353,114.60 : x
  2. Step 2: Convert to fraction form
    624,996.80/862,548.60 = 353,114.60/x
  3. Step 3: Cross multiply
    624,996.80x = 862,548.60 × 353,114.60
  4. Step 4: Simplify right side
    624,996.80x = 304,578,503,869.56
  5. Step 5: Solve for x
    x = 304,578,503,869.56/624,996.80
  6. Step 6: Final answer
    x = 487,328.10

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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.