Home / 689,895.14-952,086.60-383,991.08

Finding the Fourth Proportional to 689,895.14, 952,086.60 and 383,991.08

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Solution

The fourth proportional to 689,895.14, 952,086.60 and 383,991.08 is: 529,925.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,895.14 : 952,086.60 = 383,991.08 : x
  2. Step 2: Convert to fraction form
    689,895.14/952,086.60 = 383,991.08/x
  3. Step 3: Cross multiply
    689,895.14x = 952,086.60 × 383,991.08
  4. Step 4: Simplify right side
    689,895.14x = 365,592,757,027.10
  5. Step 5: Solve for x
    x = 365,592,757,027.10/689,895.14
  6. Step 6: Final answer
    x = 529,925.11

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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.