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Finding the Fourth Proportional to 460,699.80, 691,084.68 and 156,999.57

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Solution

The fourth proportional to 460,699.80, 691,084.68 and 156,999.57 is: 235,511.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,699.80 : 691,084.68 = 156,999.57 : x
  2. Step 2: Convert to fraction form
    460,699.80/691,084.68 = 156,999.57/x
  3. Step 3: Cross multiply
    460,699.80x = 691,084.68 × 156,999.57
  4. Step 4: Simplify right side
    460,699.80x = 108,499,997,593.59
  5. Step 5: Solve for x
    x = 108,499,997,593.59/460,699.80
  6. Step 6: Final answer
    x = 235,511.28

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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.