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Finding the Fourth Proportional to 368,511.39, 508,365.32 and 225,023.13

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Solution

The fourth proportional to 368,511.39, 508,365.32 and 225,023.13 is: 310,421.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,511.39 : 508,365.32 = 225,023.13 : x
  2. Step 2: Convert to fraction form
    368,511.39/508,365.32 = 225,023.13/x
  3. Step 3: Cross multiply
    368,511.39x = 508,365.32 × 225,023.13
  4. Step 4: Simplify right side
    368,511.39x = 114,393,954,364.74
  5. Step 5: Solve for x
    x = 114,393,954,364.74/368,511.39
  6. Step 6: Final answer
    x = 310,421.76

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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.