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Finding the Fourth Proportional to 633,125.60, 949,688.40 and 189,893.60

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Solution

The fourth proportional to 633,125.60, 949,688.40 and 189,893.60 is: 284,840.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,125.60 : 949,688.40 = 189,893.60 : x
  2. Step 2: Convert to fraction form
    633,125.60/949,688.40 = 189,893.60/x
  3. Step 3: Cross multiply
    633,125.60x = 949,688.40 × 189,893.60
  4. Step 4: Simplify right side
    633,125.60x = 180,339,749,154.24
  5. Step 5: Solve for x
    x = 180,339,749,154.24/633,125.60
  6. Step 6: Final answer
    x = 284,840.40

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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.