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Finding the Fourth Proportional to 437,641.78, 603,945.60 and 236,437.78

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Solution

The fourth proportional to 437,641.78, 603,945.60 and 236,437.78 is: 326,284.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,641.78 : 603,945.60 = 236,437.78 : x
  2. Step 2: Convert to fraction form
    437,641.78/603,945.60 = 236,437.78/x
  3. Step 3: Cross multiply
    437,641.78x = 603,945.60 × 236,437.78
  4. Step 4: Simplify right side
    437,641.78x = 142,795,556,904.77
  5. Step 5: Solve for x
    x = 142,795,556,904.77/437,641.78
  6. Step 6: Final answer
    x = 326,284.11

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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.