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Finding the Fourth Proportional to 368,059.22, 507,886.71 and 215,133.26

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Solution

The fourth proportional to 368,059.22, 507,886.71 and 215,133.26 is: 296,863.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,059.22 : 507,886.71 = 215,133.26 : x
  2. Step 2: Convert to fraction form
    368,059.22/507,886.71 = 215,133.26/x
  3. Step 3: Cross multiply
    368,059.22x = 507,886.71 × 215,133.26
  4. Step 4: Simplify right side
    368,059.22x = 109,263,323,632.98
  5. Step 5: Solve for x
    x = 109,263,323,632.98/368,059.22
  6. Step 6: Final answer
    x = 296,863.43

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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.