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Finding the Fourth Proportional to 591,384.56, 816,111.04 and 319,452.48

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Solution

The fourth proportional to 591,384.56, 816,111.04 and 319,452.48 is: 440,844.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,384.56 : 816,111.04 = 319,452.48 : x
  2. Step 2: Convert to fraction form
    591,384.56/816,111.04 = 319,452.48/x
  3. Step 3: Cross multiply
    591,384.56x = 816,111.04 × 319,452.48
  4. Step 4: Simplify right side
    591,384.56x = 260,708,695,683.38
  5. Step 5: Solve for x
    x = 260,708,695,683.38/591,384.56
  6. Step 6: Final answer
    x = 440,844.61

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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.