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Finding the Fourth Proportional to 546,080.10, 818,901.45 and 190,911.30

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Solution

The fourth proportional to 546,080.10, 818,901.45 and 190,911.30 is: 286,290.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,080.10 : 818,901.45 = 190,911.30 : x
  2. Step 2: Convert to fraction form
    546,080.10/818,901.45 = 190,911.30/x
  3. Step 3: Cross multiply
    546,080.10x = 818,901.45 × 190,911.30
  4. Step 4: Simplify right side
    546,080.10x = 156,337,540,391.39
  5. Step 5: Solve for x
    x = 156,337,540,391.39/546,080.10
  6. Step 6: Final answer
    x = 286,290.49

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Double scale
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Similar ratio
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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.