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Finding the Fourth Proportional to 500,681.01, 690,935.34 and 271,233.12

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Solution

The fourth proportional to 500,681.01, 690,935.34 and 271,233.12 is: 374,299.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,681.01 : 690,935.34 = 271,233.12 : x
  2. Step 2: Convert to fraction form
    500,681.01/690,935.34 = 271,233.12/x
  3. Step 3: Cross multiply
    500,681.01x = 690,935.34 × 271,233.12
  4. Step 4: Simplify right side
    500,681.01x = 187,404,547,986.46
  5. Step 5: Solve for x
    x = 187,404,547,986.46/500,681.01
  6. Step 6: Final answer
    x = 374,299.29

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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.