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Finding the Third Proportional to 400,953.75 and 830,328.50

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Solution

The third proportional to 400,953.75 and 830,328.50 is: 1,719,513.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,953.75 : 830,328.50 = 830,328.50 : x
  2. Step 2: Convert to fraction form
    400,953.75/830,328.50 = 830,328.50/x
  3. Step 3: Cross multiply
    400,953.75x = 830,328.50 × 830,328.50
  4. Step 4: Simplify right side
    400,953.75x = 689,445,417,912.25
  5. Step 5: Solve for x
    x = 689,445,417,912.25/400,953.75
  6. Step 6: Final answer
    x = 1,719,513.58

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.