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Finding the Fourth Proportional to 701,971.50, 968,720.74 and 379,681.62

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Solution

The fourth proportional to 701,971.50, 968,720.74 and 379,681.62 is: 523,960.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,971.50 : 968,720.74 = 379,681.62 : x
  2. Step 2: Convert to fraction form
    701,971.50/968,720.74 = 379,681.62/x
  3. Step 3: Cross multiply
    701,971.50x = 968,720.74 × 379,681.62
  4. Step 4: Simplify right side
    701,971.50x = 367,805,459,890.80
  5. Step 5: Solve for x
    x = 367,805,459,890.80/701,971.50
  6. Step 6: Final answer
    x = 523,960.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.