Home / 818,695.72-1,227,011.58-438,673.96

Finding the Fourth Proportional to 818,695.72, 1,227,011.58 and 438,673.96

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Solution

The fourth proportional to 818,695.72, 1,227,011.58 and 438,673.96 is: 657,457.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,695.72 : 1,227,011.58 = 438,673.96 : x
  2. Step 2: Convert to fraction form
    818,695.72/1,227,011.58 = 438,673.96/x
  3. Step 3: Cross multiply
    818,695.72x = 1,227,011.58 × 438,673.96
  4. Step 4: Simplify right side
    818,695.72x = 538,258,028,764.46
  5. Step 5: Solve for x
    x = 538,258,028,764.46/818,695.72
  6. Step 6: Final answer
    x = 657,457.97

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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.