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Finding the Fourth Proportional to 702,843.56, 969,919.68 and 380,552.66

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Solution

The fourth proportional to 702,843.56, 969,919.68 and 380,552.66 is: 525,160.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,843.56 : 969,919.68 = 380,552.66 : x
  2. Step 2: Convert to fraction form
    702,843.56/969,919.68 = 380,552.66/x
  3. Step 3: Cross multiply
    702,843.56x = 969,919.68 × 380,552.66
  4. Step 4: Simplify right side
    702,843.56x = 369,105,514,210.35
  5. Step 5: Solve for x
    x = 369,105,514,210.35/702,843.56
  6. Step 6: Final answer
    x = 525,160.27

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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.