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Finding the Fourth Proportional to 501,345.36, 752,324.22 and 217,111.86

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Solution

The fourth proportional to 501,345.36, 752,324.22 and 217,111.86 is: 325,800.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,345.36 : 752,324.22 = 217,111.86 : x
  2. Step 2: Convert to fraction form
    501,345.36/752,324.22 = 217,111.86/x
  3. Step 3: Cross multiply
    501,345.36x = 752,324.22 × 217,111.86
  4. Step 4: Simplify right side
    501,345.36x = 163,338,510,727.25
  5. Step 5: Solve for x
    x = 163,338,510,727.25/501,345.36
  6. Step 6: Final answer
    x = 325,800.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.