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Finding the Fourth Proportional to 353,900.40, 530,850.60 and 348,068.40

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Solution

The fourth proportional to 353,900.40, 530,850.60 and 348,068.40 is: 522,102.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,900.40 : 530,850.60 = 348,068.40 : x
  2. Step 2: Convert to fraction form
    353,900.40/530,850.60 = 348,068.40/x
  3. Step 3: Cross multiply
    353,900.40x = 530,850.60 × 348,068.40
  4. Step 4: Simplify right side
    353,900.40x = 184,772,318,981.04
  5. Step 5: Solve for x
    x = 184,772,318,981.04/353,900.40
  6. Step 6: Final answer
    x = 522,102.60

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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.