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Finding the Fourth Proportional to 482,905.40, 724,358.10 and 216,674.60

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Solution

The fourth proportional to 482,905.40, 724,358.10 and 216,674.60 is: 325,011.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,905.40 : 724,358.10 = 216,674.60 : x
  2. Step 2: Convert to fraction form
    482,905.40/724,358.10 = 216,674.60/x
  3. Step 3: Cross multiply
    482,905.40x = 724,358.10 × 216,674.60
  4. Step 4: Simplify right side
    482,905.40x = 156,950,001,574.26
  5. Step 5: Solve for x
    x = 156,950,001,574.26/482,905.40
  6. Step 6: Final answer
    x = 325,011.90

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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.