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Finding the Third Proportional to 317,532 and 684,918.50

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Solution

The third proportional to 317,532 and 684,918.50 is: 1,477,373.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,532 : 684,918.50 = 684,918.50 : x
  2. Step 2: Convert to fraction form
    317,532/684,918.50 = 684,918.50/x
  3. Step 3: Cross multiply
    317,532x = 684,918.50 × 684,918.50
  4. Step 4: Simplify right side
    317,532x = 469,113,351,642.25
  5. Step 5: Solve for x
    x = 469,113,351,642.25/317,532
  6. Step 6: Final answer
    x = 1,477,373.47

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.