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Finding the Fourth Proportional to 437,357.60, 653,640.09 and 319,277.60

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Solution

The fourth proportional to 437,357.60, 653,640.09 and 319,277.60 is: 477,167.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,357.60 : 653,640.09 = 319,277.60 : x
  2. Step 2: Convert to fraction form
    437,357.60/653,640.09 = 319,277.60/x
  3. Step 3: Cross multiply
    437,357.60x = 653,640.09 × 319,277.60
  4. Step 4: Simplify right side
    437,357.60x = 208,692,635,930.78
  5. Step 5: Solve for x
    x = 208,692,635,930.78/437,357.60
  6. Step 6: Final answer
    x = 477,167.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.