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Finding the Fourth Proportional to 624,138.80, 936,208.20 and 584,772.80

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Solution

The fourth proportional to 624,138.80, 936,208.20 and 584,772.80 is: 877,159.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,138.80 : 936,208.20 = 584,772.80 : x
  2. Step 2: Convert to fraction form
    624,138.80/936,208.20 = 584,772.80/x
  3. Step 3: Cross multiply
    624,138.80x = 936,208.20 × 584,772.80
  4. Step 4: Simplify right side
    624,138.80x = 547,469,090,496.96
  5. Step 5: Solve for x
    x = 547,469,090,496.96/624,138.80
  6. Step 6: Final answer
    x = 877,159.20

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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.