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Finding the Fourth Proportional to 591,377.82, 816,101.72 and 319,445.72

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Solution

The fourth proportional to 591,377.82, 816,101.72 and 319,445.72 is: 440,835.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,377.82 : 816,101.72 = 319,445.72 : x
  2. Step 2: Convert to fraction form
    591,377.82/816,101.72 = 319,445.72/x
  3. Step 3: Cross multiply
    591,377.82x = 816,101.72 × 319,445.72
  4. Step 4: Simplify right side
    591,377.82x = 260,700,201,538.64
  5. Step 5: Solve for x
    x = 260,700,201,538.64/591,377.82
  6. Step 6: Final answer
    x = 440,835.27

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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.