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Finding the Fourth Proportional to 427,907.46, 590,530.75 and 236,920.85

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Solution

The fourth proportional to 427,907.46, 590,530.75 and 236,920.85 is: 326,960.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,907.46 : 590,530.75 = 236,920.85 : x
  2. Step 2: Convert to fraction form
    427,907.46/590,530.75 = 236,920.85/x
  3. Step 3: Cross multiply
    427,907.46x = 590,530.75 × 236,920.85
  4. Step 4: Simplify right side
    427,907.46x = 139,909,047,241.14
  5. Step 5: Solve for x
    x = 139,909,047,241.14/427,907.46
  6. Step 6: Final answer
    x = 326,960.99

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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.