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Finding the Fourth Proportional to 364,894.86, 503,902.71 and 345,015.30

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Solution

The fourth proportional to 364,894.86, 503,902.71 and 345,015.30 is: 476,449.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,894.86 : 503,902.71 = 345,015.30 : x
  2. Step 2: Convert to fraction form
    364,894.86/503,902.71 = 345,015.30/x
  3. Step 3: Cross multiply
    364,894.86x = 503,902.71 × 345,015.30
  4. Step 4: Simplify right side
    364,894.86x = 173,854,144,661.46
  5. Step 5: Solve for x
    x = 173,854,144,661.46/364,894.86
  6. Step 6: Final answer
    x = 476,449.97

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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.