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Finding the Fourth Proportional to 488,039.40, 732,059.10 and 188,533.80

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Solution

The fourth proportional to 488,039.40, 732,059.10 and 188,533.80 is: 282,800.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,039.40 : 732,059.10 = 188,533.80 : x
  2. Step 2: Convert to fraction form
    488,039.40/732,059.10 = 188,533.80/x
  3. Step 3: Cross multiply
    488,039.40x = 732,059.10 × 188,533.80
  4. Step 4: Simplify right side
    488,039.40x = 138,017,883,947.58
  5. Step 5: Solve for x
    x = 138,017,883,947.58/488,039.40
  6. Step 6: Final answer
    x = 282,800.70

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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.