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Finding the Fourth Proportional to 353,624.40, 530,436.60 and 347,792.40

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Solution

The fourth proportional to 353,624.40, 530,436.60 and 347,792.40 is: 521,688.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,624.40 : 530,436.60 = 347,792.40 : x
  2. Step 2: Convert to fraction form
    353,624.40/530,436.60 = 347,792.40/x
  3. Step 3: Cross multiply
    353,624.40x = 530,436.60 × 347,792.40
  4. Step 4: Simplify right side
    353,624.40x = 184,481,818,161.84
  5. Step 5: Solve for x
    x = 184,481,818,161.84/353,624.40
  6. Step 6: Final answer
    x = 521,688.60

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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.