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Finding the Fourth Proportional to 492,738.90, 739,108.35 and 160,314.90

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Solution

The fourth proportional to 492,738.90, 739,108.35 and 160,314.90 is: 240,472.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,738.90 : 739,108.35 = 160,314.90 : x
  2. Step 2: Convert to fraction form
    492,738.90/739,108.35 = 160,314.90/x
  3. Step 3: Cross multiply
    492,738.90x = 739,108.35 × 160,314.90
  4. Step 4: Simplify right side
    492,738.90x = 118,490,081,219.42
  5. Step 5: Solve for x
    x = 118,490,081,219.42/492,738.90
  6. Step 6: Final answer
    x = 240,472.35

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Double scale
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Similar ratio
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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.