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Finding the Fourth Proportional to 417,686.23, 576,407.57 and 226,699.64

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Solution

The fourth proportional to 417,686.23, 576,407.57 and 226,699.64 is: 312,845.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,686.23 : 576,407.57 = 226,699.64 : x
  2. Step 2: Convert to fraction form
    417,686.23/576,407.57 = 226,699.64/x
  3. Step 3: Cross multiply
    417,686.23x = 576,407.57 × 226,699.64
  4. Step 4: Simplify right side
    417,686.23x = 130,671,388,612.28
  5. Step 5: Solve for x
    x = 130,671,388,612.28/417,686.23
  6. Step 6: Final answer
    x = 312,845.81

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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.