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Finding the Fourth Proportional to 405,619.64, 608,000.43 and 152,790.74

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Solution

The fourth proportional to 405,619.64, 608,000.43 and 152,790.74 is: 229,024.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,619.64 : 608,000.43 = 152,790.74 : x
  2. Step 2: Convert to fraction form
    405,619.64/608,000.43 = 152,790.74/x
  3. Step 3: Cross multiply
    405,619.64x = 608,000.43 × 152,790.74
  4. Step 4: Simplify right side
    405,619.64x = 92,896,835,620.02
  5. Step 5: Solve for x
    x = 92,896,835,620.02/405,619.64
  6. Step 6: Final answer
    x = 229,024.50

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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.