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Finding the Fourth Proportional to 700,673.41, 966,929.28 and 378,383.48

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Solution

The fourth proportional to 700,673.41, 966,929.28 and 378,383.48 is: 522,169.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,673.41 : 966,929.28 = 378,383.48 : x
  2. Step 2: Convert to fraction form
    700,673.41/966,929.28 = 378,383.48/x
  3. Step 3: Cross multiply
    700,673.41x = 966,929.28 × 378,383.48
  4. Step 4: Simplify right side
    700,673.41x = 365,870,063,646.96
  5. Step 5: Solve for x
    x = 365,870,063,646.96/700,673.41
  6. Step 6: Final answer
    x = 522,169.19

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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.