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Finding the Fourth Proportional to 365,327.40, 547,991.10 and 307,590.60

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Solution

The fourth proportional to 365,327.40, 547,991.10 and 307,590.60 is: 461,385.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,327.40 : 547,991.10 = 307,590.60 : x
  2. Step 2: Convert to fraction form
    365,327.40/547,991.10 = 307,590.60/x
  3. Step 3: Cross multiply
    365,327.40x = 547,991.10 × 307,590.60
  4. Step 4: Simplify right side
    365,327.40x = 168,556,911,243.66
  5. Step 5: Solve for x
    x = 168,556,911,243.66/365,327.40
  6. Step 6: Final answer
    x = 461,385.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.