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Finding the Fourth Proportional to 407,805.60, 562,752.68 and 226,529.20

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Solution

The fourth proportional to 407,805.60, 562,752.68 and 226,529.20 is: 312,599.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,805.60 : 562,752.68 = 226,529.20 : x
  2. Step 2: Convert to fraction form
    407,805.60/562,752.68 = 226,529.20/x
  3. Step 3: Cross multiply
    407,805.60x = 562,752.68 × 226,529.20
  4. Step 4: Simplify right side
    407,805.60x = 127,479,914,398.26
  5. Step 5: Solve for x
    x = 127,479,914,398.26/407,805.60
  6. Step 6: Final answer
    x = 312,599.72

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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.