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Finding the Fourth Proportional to 585,441.81, 807,889.14 and 330,787.53

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Solution

The fourth proportional to 585,441.81, 807,889.14 and 330,787.53 is: 456,475.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,441.81 : 807,889.14 = 330,787.53 : x
  2. Step 2: Convert to fraction form
    585,441.81/807,889.14 = 330,787.53/x
  3. Step 3: Cross multiply
    585,441.81x = 807,889.14 × 330,787.53
  4. Step 4: Simplify right side
    585,441.81x = 267,239,653,134.42
  5. Step 5: Solve for x
    x = 267,239,653,134.42/585,441.81
  6. Step 6: Final answer
    x = 456,475.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.