Home / 677,939.58-935,554.05-372,021.12

Finding the Fourth Proportional to 677,939.58, 935,554.05 and 372,021.12

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Solution

The fourth proportional to 677,939.58, 935,554.05 and 372,021.12 is: 513,387.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,939.58 : 935,554.05 = 372,021.12 : x
  2. Step 2: Convert to fraction form
    677,939.58/935,554.05 = 372,021.12/x
  3. Step 3: Cross multiply
    677,939.58x = 935,554.05 × 372,021.12
  4. Step 4: Simplify right side
    677,939.58x = 348,045,865,501.54
  5. Step 5: Solve for x
    x = 348,045,865,501.54/677,939.58
  6. Step 6: Final answer
    x = 513,387.74

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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.