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Finding the Fourth Proportional to 417,090.61, 575,808.37 and 326,253.56

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Solution

The fourth proportional to 417,090.61, 575,808.37 and 326,253.56 is: 450,404.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,090.61 : 575,808.37 = 326,253.56 : x
  2. Step 2: Convert to fraction form
    417,090.61/575,808.37 = 326,253.56/x
  3. Step 3: Cross multiply
    417,090.61x = 575,808.37 × 326,253.56
  4. Step 4: Simplify right side
    417,090.61x = 187,859,531,214.18
  5. Step 5: Solve for x
    x = 187,859,531,214.18/417,090.61
  6. Step 6: Final answer
    x = 450,404.61

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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.