Home / 657,384.87-985,632.35-257,776.23

Finding the Fourth Proportional to 657,384.87, 985,632.35 and 257,776.23

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Solution

The fourth proportional to 657,384.87, 985,632.35 and 257,776.23 is: 386,489.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,384.87 : 985,632.35 = 257,776.23 : x
  2. Step 2: Convert to fraction form
    657,384.87/985,632.35 = 257,776.23/x
  3. Step 3: Cross multiply
    657,384.87x = 985,632.35 × 257,776.23
  4. Step 4: Simplify right side
    657,384.87x = 254,072,590,060.16
  5. Step 5: Solve for x
    x = 254,072,590,060.16/657,384.87
  6. Step 6: Final answer
    x = 386,489.87

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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.