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Finding the Fourth Proportional to 417,477.78, 576,148.29 and 236,190.42

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Solution

The fourth proportional to 417,477.78, 576,148.29 and 236,190.42 is: 325,959.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,477.78 : 576,148.29 = 236,190.42 : x
  2. Step 2: Convert to fraction form
    417,477.78/576,148.29 = 236,190.42/x
  3. Step 3: Cross multiply
    417,477.78x = 576,148.29 × 236,190.42
  4. Step 4: Simplify right side
    417,477.78x = 136,080,706,597.38
  5. Step 5: Solve for x
    x = 136,080,706,597.38/417,477.78
  6. Step 6: Final answer
    x = 325,959.16

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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.