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Finding the Third Proportional to 549,690 and 840,883.50

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Solution

The third proportional to 549,690 and 840,883.50 is: 1,286,334.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,690 : 840,883.50 = 840,883.50 : x
  2. Step 2: Convert to fraction form
    549,690/840,883.50 = 840,883.50/x
  3. Step 3: Cross multiply
    549,690x = 840,883.50 × 840,883.50
  4. Step 4: Simplify right side
    549,690x = 707,085,060,572.25
  5. Step 5: Solve for x
    x = 707,085,060,572.25/549,690
  6. Step 6: Final answer
    x = 1,286,334.23

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.