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Finding the Third Proportional to 545,803.50 and 781,566

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Solution

The third proportional to 545,803.50 and 781,566 is: 1,119,167.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,803.50 : 781,566 = 781,566 : x
  2. Step 2: Convert to fraction form
    545,803.50/781,566 = 781,566/x
  3. Step 3: Cross multiply
    545,803.50x = 781,566 × 781,566
  4. Step 4: Simplify right side
    545,803.50x = 610,845,412,356
  5. Step 5: Solve for x
    x = 610,845,412,356/545,803.50
  6. Step 6: Final answer
    x = 1,119,167.27

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.