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Finding the Fourth Proportional to 407,716.72, 562,633.64 and 226,440.32

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Solution

The fourth proportional to 407,716.72, 562,633.64 and 226,440.32 is: 312,479.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,716.72 : 562,633.64 = 226,440.32 : x
  2. Step 2: Convert to fraction form
    407,716.72/562,633.64 = 226,440.32/x
  3. Step 3: Cross multiply
    407,716.72x = 562,633.64 × 226,440.32
  4. Step 4: Simplify right side
    407,716.72x = 127,402,941,484.37
  5. Step 5: Solve for x
    x = 127,402,941,484.37/407,716.72
  6. Step 6: Final answer
    x = 312,479.07

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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.