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Finding the Fourth Proportional to 551,410.79, 826,528.11 and 314,242.79

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Solution

The fourth proportional to 551,410.79, 826,528.11 and 314,242.79 is: 471,029.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,410.79 : 826,528.11 = 314,242.79 : x
  2. Step 2: Convert to fraction form
    551,410.79/826,528.11 = 314,242.79/x
  3. Step 3: Cross multiply
    551,410.79x = 826,528.11 × 314,242.79
  4. Step 4: Simplify right side
    551,410.79x = 259,730,495,167.19
  5. Step 5: Solve for x
    x = 259,730,495,167.19/551,410.79
  6. Step 6: Final answer
    x = 471,029.04

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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.