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Finding the Fourth Proportional to 503,419.40, 755,129.10 and 464,928.20

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Solution

The fourth proportional to 503,419.40, 755,129.10 and 464,928.20 is: 697,392.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,419.40 : 755,129.10 = 464,928.20 : x
  2. Step 2: Convert to fraction form
    503,419.40/755,129.10 = 464,928.20/x
  3. Step 3: Cross multiply
    503,419.40x = 755,129.10 × 464,928.20
  4. Step 4: Simplify right side
    503,419.40x = 351,080,813,230.62
  5. Step 5: Solve for x
    x = 351,080,813,230.62/503,419.40
  6. Step 6: Final answer
    x = 697,392.30

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Double scale
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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.