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Finding the Fourth Proportional to 1,183,778, 1,633,613.64 and 647,234

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Solution

The fourth proportional to 1,183,778, 1,633,613.64 and 647,234 is: 893,182.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,183,778 : 1,633,613.64 = 647,234 : x
  2. Step 2: Convert to fraction form
    1,183,778/1,633,613.64 = 647,234/x
  3. Step 3: Cross multiply
    1,183,778x = 1,633,613.64 × 647,234
  4. Step 4: Simplify right side
    1,183,778x = 1,057,330,290,671.76
  5. Step 5: Solve for x
    x = 1,057,330,290,671.76/1,183,778
  6. Step 6: Final answer
    x = 893,182.92

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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.