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Finding the Fourth Proportional to 482,829.40, 724,373.70 and 430,600.60

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Solution

The fourth proportional to 482,829.40, 724,373.70 and 430,600.60 is: 646,016.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,829.40 : 724,373.70 = 430,600.60 : x
  2. Step 2: Convert to fraction form
    482,829.40/724,373.70 = 430,600.60/x
  3. Step 3: Cross multiply
    482,829.40x = 724,373.70 × 430,600.60
  4. Step 4: Simplify right side
    482,829.40x = 311,915,749,844.22
  5. Step 5: Solve for x
    x = 311,915,749,844.22/482,829.40
  6. Step 6: Final answer
    x = 646,016.48

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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.