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Finding the Fourth Proportional to 417,089.86, 575,807.33 and 326,252.81

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Solution

The fourth proportional to 417,089.86, 575,807.33 and 326,252.81 is: 450,403.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,089.86 : 575,807.33 = 326,252.81 : x
  2. Step 2: Convert to fraction form
    417,089.86/575,807.33 = 326,252.81/x
  3. Step 3: Cross multiply
    417,089.86x = 575,807.33 × 326,252.81
  4. Step 4: Simplify right side
    417,089.86x = 187,858,761,686.25
  5. Step 5: Solve for x
    x = 187,858,761,686.25/417,089.86
  6. Step 6: Final answer
    x = 450,403.57

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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.