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Finding the Fourth Proportional to 447,420.74, 617,440.72 and 246,216.74

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Solution

The fourth proportional to 447,420.74, 617,440.72 and 246,216.74 is: 339,779.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,420.74 : 617,440.72 = 246,216.74 : x
  2. Step 2: Convert to fraction form
    447,420.74/617,440.72 = 246,216.74/x
  3. Step 3: Cross multiply
    447,420.74x = 617,440.72 × 246,216.74
  4. Step 4: Simplify right side
    447,420.74x = 152,024,241,221.65
  5. Step 5: Solve for x
    x = 152,024,241,221.65/447,420.74
  6. Step 6: Final answer
    x = 339,779.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.