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Finding the Fourth Proportional to 661,903.16, 992,727.75 and 257,094.92

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Solution

The fourth proportional to 661,903.16, 992,727.75 and 257,094.92 is: 385,593.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,903.16 : 992,727.75 = 257,094.92 : x
  2. Step 2: Convert to fraction form
    661,903.16/992,727.75 = 257,094.92/x
  3. Step 3: Cross multiply
    661,903.16x = 992,727.75 × 257,094.92
  4. Step 4: Simplify right side
    661,903.16x = 255,225,256,504.39
  5. Step 5: Solve for x
    x = 255,225,256,504.39/661,903.16
  6. Step 6: Final answer
    x = 385,593.05

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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.