Home / 657,030.45-985,121.94-257,711.58

Finding the Fourth Proportional to 657,030.45, 985,121.94 and 257,711.58

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Solution

The fourth proportional to 657,030.45, 985,121.94 and 257,711.58 is: 386,401.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,030.45 : 985,121.94 = 257,711.58 : x
  2. Step 2: Convert to fraction form
    657,030.45/985,121.94 = 257,711.58/x
  3. Step 3: Cross multiply
    657,030.45x = 985,121.94 × 257,711.58
  4. Step 4: Simplify right side
    657,030.45x = 253,877,331,650.07
  5. Step 5: Solve for x
    x = 253,877,331,650.07/657,030.45
  6. Step 6: Final answer
    x = 386,401.17

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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.