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Finding the Fourth Proportional to 691,004.38, 953,260.09 and 404,347

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Solution

The fourth proportional to 691,004.38, 953,260.09 and 404,347 is: 557,808.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,004.38 : 953,260.09 = 404,347 : x
  2. Step 2: Convert to fraction form
    691,004.38/953,260.09 = 404,347/x
  3. Step 3: Cross multiply
    691,004.38x = 953,260.09 × 404,347
  4. Step 4: Simplify right side
    691,004.38x = 385,447,857,611.23
  5. Step 5: Solve for x
    x = 385,447,857,611.23/691,004.38
  6. Step 6: Final answer
    x = 557,808.13

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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.