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Finding the Fourth Proportional to 633,111.10, 949,666.65 and 189,879.10

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Solution

The fourth proportional to 633,111.10, 949,666.65 and 189,879.10 is: 284,818.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,111.10 : 949,666.65 = 189,879.10 : x
  2. Step 2: Convert to fraction form
    633,111.10/949,666.65 = 189,879.10/x
  3. Step 3: Cross multiply
    633,111.10x = 949,666.65 × 189,879.10
  4. Step 4: Simplify right side
    633,111.10x = 180,321,848,802.02
  5. Step 5: Solve for x
    x = 180,321,848,802.02/633,111.10
  6. Step 6: Final answer
    x = 284,818.65

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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.