Home / 678,461.28-936,234.05-372,536.20

Finding the Fourth Proportional to 678,461.28, 936,234.05 and 372,536.20

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Solution

The fourth proportional to 678,461.28, 936,234.05 and 372,536.20 is: 514,076.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,461.28 : 936,234.05 = 372,536.20 : x
  2. Step 2: Convert to fraction form
    678,461.28/936,234.05 = 372,536.20/x
  3. Step 3: Cross multiply
    678,461.28x = 936,234.05 × 372,536.20
  4. Step 4: Simplify right side
    678,461.28x = 348,781,068,753.76
  5. Step 5: Solve for x
    x = 348,781,068,753.76/678,461.28
  6. Step 6: Final answer
    x = 514,076.60

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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.