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Finding the Fourth Proportional to 450,326.34, 675,571.38 and 213,666.84

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Solution

The fourth proportional to 450,326.34, 675,571.38 and 213,666.84 is: 320,539.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,326.34 : 675,571.38 = 213,666.84 : x
  2. Step 2: Convert to fraction form
    450,326.34/675,571.38 = 213,666.84/x
  3. Step 3: Cross multiply
    450,326.34x = 675,571.38 × 213,666.84
  4. Step 4: Simplify right side
    450,326.34x = 144,347,201,959.04
  5. Step 5: Solve for x
    x = 144,347,201,959.04/450,326.34
  6. Step 6: Final answer
    x = 320,539.10

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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.