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Finding the Fourth Proportional to 624,256.60, 936,384.90 and 499,840.60

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Solution

The fourth proportional to 624,256.60, 936,384.90 and 499,840.60 is: 749,760.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,256.60 : 936,384.90 = 499,840.60 : x
  2. Step 2: Convert to fraction form
    624,256.60/936,384.90 = 499,840.60/x
  3. Step 3: Cross multiply
    624,256.60x = 936,384.90 × 499,840.60
  4. Step 4: Simplify right side
    624,256.60x = 468,043,190,246.94
  5. Step 5: Solve for x
    x = 468,043,190,246.94/624,256.60
  6. Step 6: Final answer
    x = 749,760.90

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Half scale
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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.