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Finding the Third Proportional to 389,483.44 and 616,210.88

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Solution

The third proportional to 389,483.44 and 616,210.88 is: 974,921.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,483.44 : 616,210.88 = 616,210.88 : x
  2. Step 2: Convert to fraction form
    389,483.44/616,210.88 = 616,210.88/x
  3. Step 3: Cross multiply
    389,483.44x = 616,210.88 × 616,210.88
  4. Step 4: Simplify right side
    389,483.44x = 379,715,842,468.27
  5. Step 5: Solve for x
    x = 379,715,842,468.27/389,483.44
  6. Step 6: Final answer
    x = 974,921.67

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.