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Finding the Fourth Proportional to 404,927.28, 607,393.08 and 265,568.40

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Solution

The fourth proportional to 404,927.28, 607,393.08 and 265,568.40 is: 398,354.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,927.28 : 607,393.08 = 265,568.40 : x
  2. Step 2: Convert to fraction form
    404,927.28/607,393.08 = 265,568.40/x
  3. Step 3: Cross multiply
    404,927.28x = 607,393.08 × 265,568.40
  4. Step 4: Simplify right side
    404,927.28x = 161,304,408,426.67
  5. Step 5: Solve for x
    x = 161,304,408,426.67/404,927.28
  6. Step 6: Final answer
    x = 398,354.02

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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.