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Finding the Fourth Proportional to 503,790.90, 755,686.35 and 354,200.10

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Solution

The fourth proportional to 503,790.90, 755,686.35 and 354,200.10 is: 531,300.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,790.90 : 755,686.35 = 354,200.10 : x
  2. Step 2: Convert to fraction form
    503,790.90/755,686.35 = 354,200.10/x
  3. Step 3: Cross multiply
    503,790.90x = 755,686.35 × 354,200.10
  4. Step 4: Simplify right side
    503,790.90x = 267,664,180,738.64
  5. Step 5: Solve for x
    x = 267,664,180,738.64/503,790.90
  6. Step 6: Final answer
    x = 531,300.15

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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.