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Finding the Fourth Proportional to 417,636.40, 626,454.60 and 151,405.60

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Solution

The fourth proportional to 417,636.40, 626,454.60 and 151,405.60 is: 227,108.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,636.40 : 626,454.60 = 151,405.60 : x
  2. Step 2: Convert to fraction form
    417,636.40/626,454.60 = 151,405.60/x
  3. Step 3: Cross multiply
    417,636.40x = 626,454.60 × 151,405.60
  4. Step 4: Simplify right side
    417,636.40x = 94,848,734,585.76
  5. Step 5: Solve for x
    x = 94,848,734,585.76/417,636.40
  6. Step 6: Final answer
    x = 227,108.40

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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.