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Finding the Fourth Proportional to 634,276.80, 951,415.20 and 624,945.60

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Solution

The fourth proportional to 634,276.80, 951,415.20 and 624,945.60 is: 937,418.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,276.80 : 951,415.20 = 624,945.60 : x
  2. Step 2: Convert to fraction form
    634,276.80/951,415.20 = 624,945.60/x
  3. Step 3: Cross multiply
    634,276.80x = 951,415.20 × 624,945.60
  4. Step 4: Simplify right side
    634,276.80x = 594,582,743,013.12
  5. Step 5: Solve for x
    x = 594,582,743,013.12/634,276.80
  6. Step 6: Final answer
    x = 937,418.40

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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.