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Finding the Fourth Proportional to 379,362.10, 523,513.54 and 207,276.38

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Solution

The fourth proportional to 379,362.10, 523,513.54 and 207,276.38 is: 286,038.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,362.10 : 523,513.54 = 207,276.38 : x
  2. Step 2: Convert to fraction form
    379,362.10/523,513.54 = 207,276.38/x
  3. Step 3: Cross multiply
    379,362.10x = 523,513.54 × 207,276.38
  4. Step 4: Simplify right side
    379,362.10x = 108,511,991,452.19
  5. Step 5: Solve for x
    x = 108,511,991,452.19/379,362.10
  6. Step 6: Final answer
    x = 286,038.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.