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Finding the Fourth Proportional to 546,935.20, 820,402.80 and 191,985.10

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Solution

The fourth proportional to 546,935.20, 820,402.80 and 191,985.10 is: 287,977.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,935.20 : 820,402.80 = 191,985.10 : x
  2. Step 2: Convert to fraction form
    546,935.20/820,402.80 = 191,985.10/x
  3. Step 3: Cross multiply
    546,935.20x = 820,402.80 × 191,985.10
  4. Step 4: Simplify right side
    546,935.20x = 157,505,113,598.28
  5. Step 5: Solve for x
    x = 157,505,113,598.28/546,935.20
  6. Step 6: Final answer
    x = 287,977.65

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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.