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Finding the Fourth Proportional to 284,893.60, 427,378.80 and 97,962.40

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Solution

The fourth proportional to 284,893.60, 427,378.80 and 97,962.40 is: 146,956.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,893.60 : 427,378.80 = 97,962.40 : x
  2. Step 2: Convert to fraction form
    284,893.60/427,378.80 = 97,962.40/x
  3. Step 3: Cross multiply
    284,893.60x = 427,378.80 × 97,962.40
  4. Step 4: Simplify right side
    284,893.60x = 41,867,052,957.12
  5. Step 5: Solve for x
    x = 41,867,052,957.12/284,893.60
  6. Step 6: Final answer
    x = 146,956.80

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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.