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Finding the Fourth Proportional to 417,951.54, 626,927.32 and 102,405.72

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Solution

The fourth proportional to 417,951.54, 626,927.32 and 102,405.72 is: 153,608.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,951.54 : 626,927.32 = 102,405.72 : x
  2. Step 2: Convert to fraction form
    417,951.54/626,927.32 = 102,405.72/x
  3. Step 3: Cross multiply
    417,951.54x = 626,927.32 × 102,405.72
  4. Step 4: Simplify right side
    417,951.54x = 64,200,943,592.27
  5. Step 5: Solve for x
    x = 64,200,943,592.27/417,951.54
  6. Step 6: Final answer
    x = 153,608.58

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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.