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Finding the Fourth Proportional to 443,564.40, 622,564.80 and 443,564.40

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Solution

The fourth proportional to 443,564.40, 622,564.80 and 443,564.40 is: 622,564.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,564.40 : 622,564.80 = 443,564.40 : x
  2. Step 2: Convert to fraction form
    443,564.40/622,564.80 = 443,564.40/x
  3. Step 3: Cross multiply
    443,564.40x = 622,564.80 × 443,564.40
  4. Step 4: Simplify right side
    443,564.40x = 276,147,581,973.12
  5. Step 5: Solve for x
    x = 276,147,581,973.12/443,564.40
  6. Step 6: Final answer
    x = 622,564.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.