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Finding the Fourth Proportional to 619,266.70, 928,900.05 and 370,434.70

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Solution

The fourth proportional to 619,266.70, 928,900.05 and 370,434.70 is: 555,652.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,266.70 : 928,900.05 = 370,434.70 : x
  2. Step 2: Convert to fraction form
    619,266.70/928,900.05 = 370,434.70/x
  3. Step 3: Cross multiply
    619,266.70x = 928,900.05 × 370,434.70
  4. Step 4: Simplify right side
    619,266.70x = 344,096,811,351.74
  5. Step 5: Solve for x
    x = 344,096,811,351.74/619,266.70
  6. Step 6: Final answer
    x = 555,652.05

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Similar ratio
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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.