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Finding the Fourth Proportional to 492,853.70, 739,280.55 and 118,876.70

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Solution

The fourth proportional to 492,853.70, 739,280.55 and 118,876.70 is: 178,315.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,853.70 : 739,280.55 = 118,876.70 : x
  2. Step 2: Convert to fraction form
    492,853.70/739,280.55 = 118,876.70/x
  3. Step 3: Cross multiply
    492,853.70x = 739,280.55 × 118,876.70
  4. Step 4: Simplify right side
    492,853.70x = 87,883,232,158.19
  5. Step 5: Solve for x
    x = 87,883,232,158.19/492,853.70
  6. Step 6: Final answer
    x = 178,315.05

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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.