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Finding the Fourth Proportional to 611,329.60, 915,244.80 and 541,345.60

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Solution

The fourth proportional to 611,329.60, 915,244.80 and 541,345.60 is: 810,469.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,329.60 : 915,244.80 = 541,345.60 : x
  2. Step 2: Convert to fraction form
    611,329.60/915,244.80 = 541,345.60/x
  3. Step 3: Cross multiply
    611,329.60x = 915,244.80 × 541,345.60
  4. Step 4: Simplify right side
    611,329.60x = 495,463,745,402.88
  5. Step 5: Solve for x
    x = 495,463,745,402.88/611,329.60
  6. Step 6: Final answer
    x = 810,469.09

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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.