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Finding the Fourth Proportional to 669,816.80, 1,003,558.80 and 576,504.80

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Solution

The fourth proportional to 669,816.80, 1,003,558.80 and 576,504.80 is: 863,753.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,816.80 : 1,003,558.80 = 576,504.80 : x
  2. Step 2: Convert to fraction form
    669,816.80/1,003,558.80 = 576,504.80/x
  3. Step 3: Cross multiply
    669,816.80x = 1,003,558.80 × 576,504.80
  4. Step 4: Simplify right side
    669,816.80x = 578,556,465,282.24
  5. Step 5: Solve for x
    x = 578,556,465,282.24/669,816.80
  6. Step 6: Final answer
    x = 863,753.29

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Double scale
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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.