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Finding the Fourth Proportional to 715,339.80, 1,072,032.84 and 360,593.82

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Solution

The fourth proportional to 715,339.80, 1,072,032.84 and 360,593.82 is: 540,398.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,339.80 : 1,072,032.84 = 360,593.82 : x
  2. Step 2: Convert to fraction form
    715,339.80/1,072,032.84 = 360,593.82/x
  3. Step 3: Cross multiply
    715,339.80x = 1,072,032.84 × 360,593.82
  4. Step 4: Simplify right side
    715,339.80x = 386,568,416,941.05
  5. Step 5: Solve for x
    x = 386,568,416,941.05/715,339.80
  6. Step 6: Final answer
    x = 540,398.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.