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Finding the Fourth Proportional to 357,909.35, 535,695.80 and 263,114.44

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Solution

The fourth proportional to 357,909.35, 535,695.80 and 263,114.44 is: 393,812.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,909.35 : 535,695.80 = 263,114.44 : x
  2. Step 2: Convert to fraction form
    357,909.35/535,695.80 = 263,114.44/x
  3. Step 3: Cross multiply
    357,909.35x = 535,695.80 × 263,114.44
  4. Step 4: Simplify right side
    357,909.35x = 140,949,300,427.35
  5. Step 5: Solve for x
    x = 140,949,300,427.35/357,909.35
  6. Step 6: Final answer
    x = 393,812.85

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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.