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Finding the Fourth Proportional to 598,543.80, 897,815.70 and 155,311.80

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Solution

The fourth proportional to 598,543.80, 897,815.70 and 155,311.80 is: 232,967.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,543.80 : 897,815.70 = 155,311.80 : x
  2. Step 2: Convert to fraction form
    598,543.80/897,815.70 = 155,311.80/x
  3. Step 3: Cross multiply
    598,543.80x = 897,815.70 × 155,311.80
  4. Step 4: Simplify right side
    598,543.80x = 139,441,372,435.26
  5. Step 5: Solve for x
    x = 139,441,372,435.26/598,543.80
  6. Step 6: Final answer
    x = 232,967.70

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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.