Home / 678,160.36-935,842.80-372,236.32

Finding the Fourth Proportional to 678,160.36, 935,842.80 and 372,236.32

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Solution

The fourth proportional to 678,160.36, 935,842.80 and 372,236.32 is: 513,675.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,160.36 : 935,842.80 = 372,236.32 : x
  2. Step 2: Convert to fraction form
    678,160.36/935,842.80 = 372,236.32/x
  3. Step 3: Cross multiply
    678,160.36x = 935,842.80 × 372,236.32
  4. Step 4: Simplify right side
    678,160.36x = 348,354,679,970.50
  5. Step 5: Solve for x
    x = 348,354,679,970.50/678,160.36
  6. Step 6: Final answer
    x = 513,675.97

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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.