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Finding the Fourth Proportional to 405,949.60, 608,962.80 and 110,461.60

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Solution

The fourth proportional to 405,949.60, 608,962.80 and 110,461.60 is: 165,702.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,949.60 : 608,962.80 = 110,461.60 : x
  2. Step 2: Convert to fraction form
    405,949.60/608,962.80 = 110,461.60/x
  3. Step 3: Cross multiply
    405,949.60x = 608,962.80 × 110,461.60
  4. Step 4: Simplify right side
    405,949.60x = 67,267,005,228.48
  5. Step 5: Solve for x
    x = 67,267,005,228.48/405,949.60
  6. Step 6: Final answer
    x = 165,702.85

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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.