Home / 827,869.56-1,240,681.32-378,032.76

Finding the Fourth Proportional to 827,869.56, 1,240,681.32 and 378,032.76

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Solution

The fourth proportional to 827,869.56, 1,240,681.32 and 378,032.76 is: 566,536.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,869.56 : 1,240,681.32 = 378,032.76 : x
  2. Step 2: Convert to fraction form
    827,869.56/1,240,681.32 = 378,032.76/x
  3. Step 3: Cross multiply
    827,869.56x = 1,240,681.32 × 378,032.76
  4. Step 4: Simplify right side
    827,869.56x = 469,018,183,680.04
  5. Step 5: Solve for x
    x = 469,018,183,680.04/827,869.56
  6. Step 6: Final answer
    x = 566,536.33

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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.