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Finding the Fourth Proportional to 662,695.80, 994,043.70 and 579,751.80

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Solution

The fourth proportional to 662,695.80, 994,043.70 and 579,751.80 is: 869,627.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,695.80 : 994,043.70 = 579,751.80 : x
  2. Step 2: Convert to fraction form
    662,695.80/994,043.70 = 579,751.80/x
  3. Step 3: Cross multiply
    662,695.80x = 994,043.70 × 579,751.80
  4. Step 4: Simplify right side
    662,695.80x = 576,298,624,353.66
  5. Step 5: Solve for x
    x = 576,298,624,353.66/662,695.80
  6. Step 6: Final answer
    x = 869,627.70

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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.