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Finding the Third Proportional to 623,876.63 and 931,656.94

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Solution

The third proportional to 623,876.63 and 931,656.94 is: 1,391,276.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,876.63 : 931,656.94 = 931,656.94 : x
  2. Step 2: Convert to fraction form
    623,876.63/931,656.94 = 931,656.94/x
  3. Step 3: Cross multiply
    623,876.63x = 931,656.94 × 931,656.94
  4. Step 4: Simplify right side
    623,876.63x = 867,984,649,191.88
  5. Step 5: Solve for x
    x = 867,984,649,191.88/623,876.63
  6. Step 6: Final answer
    x = 1,391,276.12

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.