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Finding the Third Proportional to 540,877.50 and 783,432

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Solution

The third proportional to 540,877.50 and 783,432 is: 1,134,759.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,877.50 : 783,432 = 783,432 : x
  2. Step 2: Convert to fraction form
    540,877.50/783,432 = 783,432/x
  3. Step 3: Cross multiply
    540,877.50x = 783,432 × 783,432
  4. Step 4: Simplify right side
    540,877.50x = 613,765,698,624
  5. Step 5: Solve for x
    x = 613,765,698,624/540,877.50
  6. Step 6: Final answer
    x = 1,134,759.16

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.