Home / 438,239.88-604,778.70-257,082.36

Finding the Fourth Proportional to 438,239.88, 604,778.70 and 257,082.36

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Solution

The fourth proportional to 438,239.88, 604,778.70 and 257,082.36 is: 354,778.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,239.88 : 604,778.70 = 257,082.36 : x
  2. Step 2: Convert to fraction form
    438,239.88/604,778.70 = 257,082.36/x
  3. Step 3: Cross multiply
    438,239.88x = 604,778.70 × 257,082.36
  4. Step 4: Simplify right side
    438,239.88x = 155,477,935,473.73
  5. Step 5: Solve for x
    x = 155,477,935,473.73/438,239.88
  6. Step 6: Final answer
    x = 354,778.15

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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.