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Finding the Fourth Proportional to 481,489.20, 722,233.80 and 292,532.40

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Solution

The fourth proportional to 481,489.20, 722,233.80 and 292,532.40 is: 438,798.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,489.20 : 722,233.80 = 292,532.40 : x
  2. Step 2: Convert to fraction form
    481,489.20/722,233.80 = 292,532.40/x
  3. Step 3: Cross multiply
    481,489.20x = 722,233.80 × 292,532.40
  4. Step 4: Simplify right side
    481,489.20x = 211,276,786,875.12
  5. Step 5: Solve for x
    x = 211,276,786,875.12/481,489.20
  6. Step 6: Final answer
    x = 438,798.60

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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.