Home / 678,169.10-935,867.30-372,236.42

Finding the Fourth Proportional to 678,169.10, 935,867.30 and 372,236.42

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Solution

The fourth proportional to 678,169.10, 935,867.30 and 372,236.42 is: 513,682.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,169.10 : 935,867.30 = 372,236.42 : x
  2. Step 2: Convert to fraction form
    678,169.10/935,867.30 = 372,236.42/x
  3. Step 3: Cross multiply
    678,169.10x = 935,867.30 × 372,236.42
  4. Step 4: Simplify right side
    678,169.10x = 348,363,893,347.07
  5. Step 5: Solve for x
    x = 348,363,893,347.07/678,169.10
  6. Step 6: Final answer
    x = 513,682.93

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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.