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Finding the Fourth Proportional to 675,930.69, 932,720.55 and 403,944.44

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Solution

The fourth proportional to 675,930.69, 932,720.55 and 403,944.44 is: 557,405.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,930.69 : 932,720.55 = 403,944.44 : x
  2. Step 2: Convert to fraction form
    675,930.69/932,720.55 = 403,944.44/x
  3. Step 3: Cross multiply
    675,930.69x = 932,720.55 × 403,944.44
  4. Step 4: Simplify right side
    675,930.69x = 376,767,275,582.64
  5. Step 5: Solve for x
    x = 376,767,275,582.64/675,930.69
  6. Step 6: Final answer
    x = 557,405.19

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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.