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Finding the Fourth Proportional to 417,187.36, 575,682.96 and 235,890.40

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Solution

The fourth proportional to 417,187.36, 575,682.96 and 235,890.40 is: 325,508.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,187.36 : 575,682.96 = 235,890.40 : x
  2. Step 2: Convert to fraction form
    417,187.36/575,682.96 = 235,890.40/x
  3. Step 3: Cross multiply
    417,187.36x = 575,682.96 × 235,890.40
  4. Step 4: Simplify right side
    417,187.36x = 135,798,083,707.58
  5. Step 5: Solve for x
    x = 135,798,083,707.58/417,187.36
  6. Step 6: Final answer
    x = 325,508.62

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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.