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Finding the Fourth Proportional to 977,647.60, 1,467,783.60 and 624,228.40

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Solution

The fourth proportional to 977,647.60, 1,467,783.60 and 624,228.40 is: 937,180.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,647.60 : 1,467,783.60 = 624,228.40 : x
  2. Step 2: Convert to fraction form
    977,647.60/1,467,783.60 = 624,228.40/x
  3. Step 3: Cross multiply
    977,647.60x = 1,467,783.60 × 624,228.40
  4. Step 4: Simplify right side
    977,647.60x = 916,232,208,174.24
  5. Step 5: Solve for x
    x = 916,232,208,174.24/977,647.60
  6. Step 6: Final answer
    x = 937,180.44

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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.