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Finding the Fourth Proportional to 503,530.40, 755,295.60 and 171,106.40

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Solution

The fourth proportional to 503,530.40, 755,295.60 and 171,106.40 is: 256,659.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,530.40 : 755,295.60 = 171,106.40 : x
  2. Step 2: Convert to fraction form
    503,530.40/755,295.60 = 171,106.40/x
  3. Step 3: Cross multiply
    503,530.40x = 755,295.60 × 171,106.40
  4. Step 4: Simplify right side
    503,530.40x = 129,235,911,051.84
  5. Step 5: Solve for x
    x = 129,235,911,051.84/503,530.40
  6. Step 6: Final answer
    x = 256,659.60

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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.