Home / 656,943.40-985,444.26-257,548.60

Finding the Fourth Proportional to 656,943.40, 985,444.26 and 257,548.60

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Solution

The fourth proportional to 656,943.40, 985,444.26 and 257,548.60 is: 386,334.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,943.40 : 985,444.26 = 257,548.60 : x
  2. Step 2: Convert to fraction form
    656,943.40/985,444.26 = 257,548.60/x
  3. Step 3: Cross multiply
    656,943.40x = 985,444.26 × 257,548.60
  4. Step 4: Simplify right side
    656,943.40x = 253,799,789,541.04
  5. Step 5: Solve for x
    x = 253,799,789,541.04/656,943.40
  6. Step 6: Final answer
    x = 386,334.33

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Double scale
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1.5x scale

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.