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Finding the Fourth Proportional to 373,742.32, 515,602.60 and 228,554.45

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Solution

The fourth proportional to 373,742.32, 515,602.60 and 228,554.45 is: 315,306.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,742.32 : 515,602.60 = 228,554.45 : x
  2. Step 2: Convert to fraction form
    373,742.32/515,602.60 = 228,554.45/x
  3. Step 3: Cross multiply
    373,742.32x = 515,602.60 × 228,554.45
  4. Step 4: Simplify right side
    373,742.32x = 117,843,268,661.57
  5. Step 5: Solve for x
    x = 117,843,268,661.57/373,742.32
  6. Step 6: Final answer
    x = 315,306.19

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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.