Home / 690,711.12-953,249.60-404,214.12

Finding the Fourth Proportional to 690,711.12, 953,249.60 and 404,214.12

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Solution

The fourth proportional to 690,711.12, 953,249.60 and 404,214.12 is: 557,855.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,711.12 : 953,249.60 = 404,214.12 : x
  2. Step 2: Convert to fraction form
    690,711.12/953,249.60 = 404,214.12/x
  3. Step 3: Cross multiply
    690,711.12x = 953,249.60 × 404,214.12
  4. Step 4: Simplify right side
    690,711.12x = 385,316,948,204.35
  5. Step 5: Solve for x
    x = 385,316,948,204.35/690,711.12
  6. Step 6: Final answer
    x = 557,855.43

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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.