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Finding the Fourth Proportional to 703,913.42, 971,327.82 and 431,992.77

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Solution

The fourth proportional to 703,913.42, 971,327.82 and 431,992.77 is: 596,105.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,913.42 : 971,327.82 = 431,992.77 : x
  2. Step 2: Convert to fraction form
    703,913.42/971,327.82 = 431,992.77/x
  3. Step 3: Cross multiply
    703,913.42x = 971,327.82 × 431,992.77
  4. Step 4: Simplify right side
    703,913.42x = 419,606,595,539.86
  5. Step 5: Solve for x
    x = 419,606,595,539.86/703,913.42
  6. Step 6: Final answer
    x = 596,105.41

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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.