Home / 678,034.72-935,869.44-423,232.48

Finding the Fourth Proportional to 678,034.72, 935,869.44 and 423,232.48

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Solution

The fourth proportional to 678,034.72, 935,869.44 and 423,232.48 is: 584,174.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,034.72 : 935,869.44 = 423,232.48 : x
  2. Step 2: Convert to fraction form
    678,034.72/935,869.44 = 423,232.48/x
  3. Step 3: Cross multiply
    678,034.72x = 935,869.44 × 423,232.48
  4. Step 4: Simplify right side
    678,034.72x = 396,090,344,047.41
  5. Step 5: Solve for x
    x = 396,090,344,047.41/678,034.72
  6. Step 6: Final answer
    x = 584,174.13

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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.