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Finding the Fourth Proportional to 510,396.14, 765,431.32 and 168,776.26

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Solution

The fourth proportional to 510,396.14, 765,431.32 and 168,776.26 is: 253,110.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,396.14 : 765,431.32 = 168,776.26 : x
  2. Step 2: Convert to fraction form
    510,396.14/765,431.32 = 168,776.26/x
  3. Step 3: Cross multiply
    510,396.14x = 765,431.32 × 168,776.26
  4. Step 4: Simplify right side
    510,396.14x = 129,186,633,457.40
  5. Step 5: Solve for x
    x = 129,186,633,457.40/510,396.14
  6. Step 6: Final answer
    x = 253,110.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.