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Finding the Fourth Proportional to 1,296,162.60, 1,788,418 and 751,983

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Solution

The fourth proportional to 1,296,162.60, 1,788,418 and 751,983 is: 1,037,570.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,162.60 : 1,788,418 = 751,983 : x
  2. Step 2: Convert to fraction form
    1,296,162.60/1,788,418 = 751,983/x
  3. Step 3: Cross multiply
    1,296,162.60x = 1,788,418 × 751,983
  4. Step 4: Simplify right side
    1,296,162.60x = 1,344,859,932,894
  5. Step 5: Solve for x
    x = 1,344,859,932,894/1,296,162.60
  6. Step 6: Final answer
    x = 1,037,570.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.