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Finding the Fourth Proportional to 296,752.40, 445,128.60 and 261,731.60

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Solution

The fourth proportional to 296,752.40, 445,128.60 and 261,731.60 is: 392,597.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,752.40 : 445,128.60 = 261,731.60 : x
  2. Step 2: Convert to fraction form
    296,752.40/445,128.60 = 261,731.60/x
  3. Step 3: Cross multiply
    296,752.40x = 445,128.60 × 261,731.60
  4. Step 4: Simplify right side
    296,752.40x = 116,504,220,683.76
  5. Step 5: Solve for x
    x = 116,504,220,683.76/296,752.40
  6. Step 6: Final answer
    x = 392,597.40

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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.