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Finding the Fourth Proportional to 417,697.72, 576,416.64 and 236,444.02

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Solution

The fourth proportional to 417,697.72, 576,416.64 and 236,444.02 is: 326,289.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,697.72 : 576,416.64 = 236,444.02 : x
  2. Step 2: Convert to fraction form
    417,697.72/576,416.64 = 236,444.02/x
  3. Step 3: Cross multiply
    417,697.72x = 576,416.64 × 236,444.02
  4. Step 4: Simplify right side
    417,697.72x = 136,290,267,556.49
  5. Step 5: Solve for x
    x = 136,290,267,556.49/417,697.72
  6. Step 6: Final answer
    x = 326,289.23

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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.