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Finding the Fourth Proportional to 418,515.57, 627,576.48 and 292,298.34

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Solution

The fourth proportional to 418,515.57, 627,576.48 and 292,298.34 is: 438,310.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,515.57 : 627,576.48 = 292,298.34 : x
  2. Step 2: Convert to fraction form
    418,515.57/627,576.48 = 292,298.34/x
  3. Step 3: Cross multiply
    418,515.57x = 627,576.48 × 292,298.34
  4. Step 4: Simplify right side
    418,515.57x = 183,439,563,327.04
  5. Step 5: Solve for x
    x = 183,439,563,327.04/418,515.57
  6. Step 6: Final answer
    x = 438,310.01

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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.