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Finding the Fourth Proportional to 351,309.66, 484,807.33 and 200,406.66

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Solution

The fourth proportional to 351,309.66, 484,807.33 and 200,406.66 is: 276,561.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,309.66 : 484,807.33 = 200,406.66 : x
  2. Step 2: Convert to fraction form
    351,309.66/484,807.33 = 200,406.66/x
  3. Step 3: Cross multiply
    351,309.66x = 484,807.33 × 200,406.66
  4. Step 4: Simplify right side
    351,309.66x = 97,158,615,054.01
  5. Step 5: Solve for x
    x = 97,158,615,054.01/351,309.66
  6. Step 6: Final answer
    x = 276,561.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.