Home / 690,705.12-953,241.30-404,208.12

Finding the Fourth Proportional to 690,705.12, 953,241.30 and 404,208.12

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Solution

The fourth proportional to 690,705.12, 953,241.30 and 404,208.12 is: 557,847.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,705.12 : 953,241.30 = 404,208.12 : x
  2. Step 2: Convert to fraction form
    690,705.12/953,241.30 = 404,208.12/x
  3. Step 3: Cross multiply
    690,705.12x = 953,241.30 × 404,208.12
  4. Step 4: Simplify right side
    690,705.12x = 385,307,873,779.36
  5. Step 5: Solve for x
    x = 385,307,873,779.36/690,705.12
  6. Step 6: Final answer
    x = 557,847.14

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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.