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Finding the Fourth Proportional to 609,097.19, 913,132 and 383,961.44

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Solution

The fourth proportional to 609,097.19, 913,132 and 383,961.44 is: 575,618.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,097.19 : 913,132 = 383,961.44 : x
  2. Step 2: Convert to fraction form
    609,097.19/913,132 = 383,961.44/x
  3. Step 3: Cross multiply
    609,097.19x = 913,132 × 383,961.44
  4. Step 4: Simplify right side
    609,097.19x = 350,607,477,630.08
  5. Step 5: Solve for x
    x = 350,607,477,630.08/609,097.19
  6. Step 6: Final answer
    x = 575,618.28

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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.