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Finding the Fourth Proportional to 318,335.61, 439,365.57 and 182,460.66

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Solution

The fourth proportional to 318,335.61, 439,365.57 and 182,460.66 is: 251,831.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,335.61 : 439,365.57 = 182,460.66 : x
  2. Step 2: Convert to fraction form
    318,335.61/439,365.57 = 182,460.66/x
  3. Step 3: Cross multiply
    318,335.61x = 439,365.57 × 182,460.66
  4. Step 4: Simplify right side
    318,335.61x = 80,166,931,883.48
  5. Step 5: Solve for x
    x = 80,166,931,883.48/318,335.61
  6. Step 6: Final answer
    x = 251,831.49

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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.