Home / 656,979.40-985,238.70-341,331.40

Finding the Fourth Proportional to 656,979.40, 985,238.70 and 341,331.40

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Solution

The fourth proportional to 656,979.40, 985,238.70 and 341,331.40 is: 511,877.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,979.40 : 985,238.70 = 341,331.40 : x
  2. Step 2: Convert to fraction form
    656,979.40/985,238.70 = 341,331.40/x
  3. Step 3: Cross multiply
    656,979.40x = 985,238.70 × 341,331.40
  4. Step 4: Simplify right side
    656,979.40x = 336,292,904,805.18
  5. Step 5: Solve for x
    x = 336,292,904,805.18/656,979.40
  6. Step 6: Final answer
    x = 511,877.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.