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Finding the Fourth Proportional to 292,383.47, 403,489.15 and 158,247.47

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Solution

The fourth proportional to 292,383.47, 403,489.15 and 158,247.47 is: 218,381.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,383.47 : 403,489.15 = 158,247.47 : x
  2. Step 2: Convert to fraction form
    292,383.47/403,489.15 = 158,247.47/x
  3. Step 3: Cross multiply
    292,383.47x = 403,489.15 × 158,247.47
  4. Step 4: Simplify right side
    292,383.47x = 63,851,137,773.05
  5. Step 5: Solve for x
    x = 63,851,137,773.05/292,383.47
  6. Step 6: Final answer
    x = 218,381.49

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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.