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Finding the Fourth Proportional to 624,273.40, 936,410.10 and 499,857.40

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Solution

The fourth proportional to 624,273.40, 936,410.10 and 499,857.40 is: 749,786.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,273.40 : 936,410.10 = 499,857.40 : x
  2. Step 2: Convert to fraction form
    624,273.40/936,410.10 = 499,857.40/x
  3. Step 3: Cross multiply
    624,273.40x = 936,410.10 × 499,857.40
  4. Step 4: Simplify right side
    624,273.40x = 468,071,517,919.74
  5. Step 5: Solve for x
    x = 468,071,517,919.74/624,273.40
  6. Step 6: Final answer
    x = 749,786.10

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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.