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Finding the Fourth Proportional to 619,554.30, 929,101.05 and 245,499.90

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Solution

The fourth proportional to 619,554.30, 929,101.05 and 245,499.90 is: 368,158.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,554.30 : 929,101.05 = 245,499.90 : x
  2. Step 2: Convert to fraction form
    619,554.30/929,101.05 = 245,499.90/x
  3. Step 3: Cross multiply
    619,554.30x = 929,101.05 × 245,499.90
  4. Step 4: Simplify right side
    619,554.30x = 228,094,214,864.90
  5. Step 5: Solve for x
    x = 228,094,214,864.90/619,554.30
  6. Step 6: Final answer
    x = 368,158.55

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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.