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Finding the Fourth Proportional to 257,547.60, 385,446.60 and 226,054.80

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Solution

The fourth proportional to 257,547.60, 385,446.60 and 226,054.80 is: 338,314.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,547.60 : 385,446.60 = 226,054.80 : x
  2. Step 2: Convert to fraction form
    257,547.60/385,446.60 = 226,054.80/x
  3. Step 3: Cross multiply
    257,547.60x = 385,446.60 × 226,054.80
  4. Step 4: Simplify right side
    257,547.60x = 87,132,054,073.68
  5. Step 5: Solve for x
    x = 87,132,054,073.68/257,547.60
  6. Step 6: Final answer
    x = 338,314.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.