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Finding the Fourth Proportional to 819,325.01, 1,130,735.81 and 451,874.03

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Solution

The fourth proportional to 819,325.01, 1,130,735.81 and 451,874.03 is: 623,623.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,325.01 : 1,130,735.81 = 451,874.03 : x
  2. Step 2: Convert to fraction form
    819,325.01/1,130,735.81 = 451,874.03/x
  3. Step 3: Cross multiply
    819,325.01x = 1,130,735.81 × 451,874.03
  4. Step 4: Simplify right side
    819,325.01x = 510,950,139,416.97
  5. Step 5: Solve for x
    x = 510,950,139,416.97/819,325.01
  6. Step 6: Final answer
    x = 623,623.27

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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.