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Finding the Fourth Proportional to 556,128.80, 834,193.20 and 377,669.60

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Solution

The fourth proportional to 556,128.80, 834,193.20 and 377,669.60 is: 566,504.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,128.80 : 834,193.20 = 377,669.60 : x
  2. Step 2: Convert to fraction form
    556,128.80/834,193.20 = 377,669.60/x
  3. Step 3: Cross multiply
    556,128.80x = 834,193.20 × 377,669.60
  4. Step 4: Simplify right side
    556,128.80x = 315,049,412,166.72
  5. Step 5: Solve for x
    x = 315,049,412,166.72/556,128.80
  6. Step 6: Final answer
    x = 566,504.40

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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.