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Finding the Fourth Proportional to 551,316.66, 826,475.64 and 382,916.52

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Solution

The fourth proportional to 551,316.66, 826,475.64 and 382,916.52 is: 574,027.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,316.66 : 826,475.64 = 382,916.52 : x
  2. Step 2: Convert to fraction form
    551,316.66/826,475.64 = 382,916.52/x
  3. Step 3: Cross multiply
    551,316.66x = 826,475.64 × 382,916.52
  4. Step 4: Simplify right side
    551,316.66x = 316,471,175,933.57
  5. Step 5: Solve for x
    x = 316,471,175,933.57/551,316.66
  6. Step 6: Final answer
    x = 574,027.96

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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.