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Finding the Fourth Proportional to 619,808.80, 929,611.14 and 579,461.08

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Solution

The fourth proportional to 619,808.80, 929,611.14 and 579,461.08 is: 869,096.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,808.80 : 929,611.14 = 579,461.08 : x
  2. Step 2: Convert to fraction form
    619,808.80/929,611.14 = 579,461.08/x
  3. Step 3: Cross multiply
    619,808.80x = 929,611.14 × 579,461.08
  4. Step 4: Simplify right side
    619,808.80x = 538,673,475,164.43
  5. Step 5: Solve for x
    x = 538,673,475,164.43/619,808.80
  6. Step 6: Final answer
    x = 869,096.20

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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.