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Finding the Fourth Proportional to 365,570.97, 503,366.45 and 319,993.89

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Solution

The fourth proportional to 365,570.97, 503,366.45 and 319,993.89 is: 440,609.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,570.97 : 503,366.45 = 319,993.89 : x
  2. Step 2: Convert to fraction form
    365,570.97/503,366.45 = 319,993.89/x
  3. Step 3: Cross multiply
    365,570.97x = 503,366.45 × 319,993.89
  4. Step 4: Simplify right side
    365,570.97x = 161,074,186,831.02
  5. Step 5: Solve for x
    x = 161,074,186,831.02/365,570.97
  6. Step 6: Final answer
    x = 440,609.90

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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.