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Finding the Fourth Proportional to 403,536.96, 556,859.48 and 231,445.98

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Solution

The fourth proportional to 403,536.96, 556,859.48 and 231,445.98 is: 319,383.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,536.96 : 556,859.48 = 231,445.98 : x
  2. Step 2: Convert to fraction form
    403,536.96/556,859.48 = 231,445.98/x
  3. Step 3: Cross multiply
    403,536.96x = 556,859.48 × 231,445.98
  4. Step 4: Simplify right side
    403,536.96x = 128,882,886,913.66
  5. Step 5: Solve for x
    x = 128,882,886,913.66/403,536.96
  6. Step 6: Final answer
    x = 319,383.10

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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.