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Finding the Fourth Proportional to 541,812.40, 812,815.80 and 226,301.20

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Solution

The fourth proportional to 541,812.40, 812,815.80 and 226,301.20 is: 339,492.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,812.40 : 812,815.80 = 226,301.20 : x
  2. Step 2: Convert to fraction form
    541,812.40/812,815.80 = 226,301.20/x
  3. Step 3: Cross multiply
    541,812.40x = 812,815.80 × 226,301.20
  4. Step 4: Simplify right side
    541,812.40x = 183,941,190,918.96
  5. Step 5: Solve for x
    x = 183,941,190,918.96/541,812.40
  6. Step 6: Final answer
    x = 339,492.40

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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.