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Finding the Fourth Proportional to 461,736.20, 692,604.30 and 402,687.20

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Solution

The fourth proportional to 461,736.20, 692,604.30 and 402,687.20 is: 604,030.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,736.20 : 692,604.30 = 402,687.20 : x
  2. Step 2: Convert to fraction form
    461,736.20/692,604.30 = 402,687.20/x
  3. Step 3: Cross multiply
    461,736.20x = 692,604.30 × 402,687.20
  4. Step 4: Simplify right side
    461,736.20x = 278,902,886,274.96
  5. Step 5: Solve for x
    x = 278,902,886,274.96/461,736.20
  6. Step 6: Final answer
    x = 604,030.80

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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.