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Finding the Fourth Proportional to 292,353.05, 403,447.23 and 158,217.05

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Solution

The fourth proportional to 292,353.05, 403,447.23 and 158,217.05 is: 218,339.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,353.05 : 403,447.23 = 158,217.05 : x
  2. Step 2: Convert to fraction form
    292,353.05/403,447.23 = 158,217.05/x
  3. Step 3: Cross multiply
    292,353.05x = 403,447.23 × 158,217.05
  4. Step 4: Simplify right side
    292,353.05x = 63,832,229,300.50
  5. Step 5: Solve for x
    x = 63,832,229,300.50/292,353.05
  6. Step 6: Final answer
    x = 218,339.54

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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.