Home / 823,654.42-1,236,280.56-397,490.16

Finding the Fourth Proportional to 823,654.42, 1,236,280.56 and 397,490.16

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Solution

The fourth proportional to 823,654.42, 1,236,280.56 and 397,490.16 is: 596,620.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,654.42 : 1,236,280.56 = 397,490.16 : x
  2. Step 2: Convert to fraction form
    823,654.42/1,236,280.56 = 397,490.16/x
  3. Step 3: Cross multiply
    823,654.42x = 1,236,280.56 × 397,490.16
  4. Step 4: Simplify right side
    823,654.42x = 491,409,357,599.29
  5. Step 5: Solve for x
    x = 491,409,357,599.29/823,654.42
  6. Step 6: Final answer
    x = 596,620.80

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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.