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Finding the Fourth Proportional to 373,447.18, 515,354.74 and 212,302.22

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Solution

The fourth proportional to 373,447.18, 515,354.74 and 212,302.22 is: 292,975.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,447.18 : 515,354.74 = 212,302.22 : x
  2. Step 2: Convert to fraction form
    373,447.18/515,354.74 = 212,302.22/x
  3. Step 3: Cross multiply
    373,447.18x = 515,354.74 × 212,302.22
  4. Step 4: Simplify right side
    373,447.18x = 109,410,955,389.52
  5. Step 5: Solve for x
    x = 109,410,955,389.52/373,447.18
  6. Step 6: Final answer
    x = 292,975.72

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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.