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Finding the Fourth Proportional to 226,316.80, 316,428.80 and 226,316.80

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Solution

The fourth proportional to 226,316.80, 316,428.80 and 226,316.80 is: 316,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,316.80 : 316,428.80 = 226,316.80 : x
  2. Step 2: Convert to fraction form
    226,316.80/316,428.80 = 226,316.80/x
  3. Step 3: Cross multiply
    226,316.80x = 316,428.80 × 226,316.80
  4. Step 4: Simplify right side
    226,316.80x = 71,613,153,443.84
  5. Step 5: Solve for x
    x = 71,613,153,443.84/226,316.80
  6. Step 6: Final answer
    x = 316,428.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.