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Finding the Fourth Proportional to 407,744.32, 562,694.11 and 223,990.63

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Solution

The fourth proportional to 407,744.32, 562,694.11 and 223,990.63 is: 309,110.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,744.32 : 562,694.11 = 223,990.63 : x
  2. Step 2: Convert to fraction form
    407,744.32/562,694.11 = 223,990.63/x
  3. Step 3: Cross multiply
    407,744.32x = 562,694.11 × 223,990.63
  4. Step 4: Simplify right side
    407,744.32x = 126,038,208,196.19
  5. Step 5: Solve for x
    x = 126,038,208,196.19/407,744.32
  6. Step 6: Final answer
    x = 309,110.89

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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.