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Finding the Fourth Proportional to 319,656.30, 479,484.45 and 133,032.30

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Solution

The fourth proportional to 319,656.30, 479,484.45 and 133,032.30 is: 199,548.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,656.30 : 479,484.45 = 133,032.30 : x
  2. Step 2: Convert to fraction form
    319,656.30/479,484.45 = 133,032.30/x
  3. Step 3: Cross multiply
    319,656.30x = 479,484.45 × 133,032.30
  4. Step 4: Simplify right side
    319,656.30x = 63,786,919,197.74
  5. Step 5: Solve for x
    x = 63,786,919,197.74/319,656.30
  6. Step 6: Final answer
    x = 199,548.45

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Similar ratio
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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.