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Finding the Fourth Proportional to 266,411.60, 399,617.40 and 161,176.40

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Solution

The fourth proportional to 266,411.60, 399,617.40 and 161,176.40 is: 241,764.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,411.60 : 399,617.40 = 161,176.40 : x
  2. Step 2: Convert to fraction form
    266,411.60/399,617.40 = 161,176.40/x
  3. Step 3: Cross multiply
    266,411.60x = 399,617.40 × 161,176.40
  4. Step 4: Simplify right side
    266,411.60x = 64,408,893,909.36
  5. Step 5: Solve for x
    x = 64,408,893,909.36/266,411.60
  6. Step 6: Final answer
    x = 241,764.60

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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.