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Finding the Fourth Proportional to 551,090.10, 826,635.15 and 495,102.90

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Solution

The fourth proportional to 551,090.10, 826,635.15 and 495,102.90 is: 742,654.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,090.10 : 826,635.15 = 495,102.90 : x
  2. Step 2: Convert to fraction form
    551,090.10/826,635.15 = 495,102.90/x
  3. Step 3: Cross multiply
    551,090.10x = 826,635.15 × 495,102.90
  4. Step 4: Simplify right side
    551,090.10x = 409,269,460,006.94
  5. Step 5: Solve for x
    x = 409,269,460,006.94/551,090.10
  6. Step 6: Final answer
    x = 742,654.35

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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.