Home / 657,088.56-985,629.96-257,447.10

Finding the Fourth Proportional to 657,088.56, 985,629.96 and 257,447.10

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Solution

The fourth proportional to 657,088.56, 985,629.96 and 257,447.10 is: 386,169.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,088.56 : 985,629.96 = 257,447.10 : x
  2. Step 2: Convert to fraction form
    657,088.56/985,629.96 = 257,447.10/x
  3. Step 3: Cross multiply
    657,088.56x = 985,629.96 × 257,447.10
  4. Step 4: Simplify right side
    657,088.56x = 253,747,574,875.12
  5. Step 5: Solve for x
    x = 253,747,574,875.12/657,088.56
  6. Step 6: Final answer
    x = 386,169.52

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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.