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Finding the Fourth Proportional to 604,477.40, 907,372.20 and 471,945.20

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Solution

The fourth proportional to 604,477.40, 907,372.20 and 471,945.20 is: 708,430.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,477.40 : 907,372.20 = 471,945.20 : x
  2. Step 2: Convert to fraction form
    604,477.40/907,372.20 = 471,945.20/x
  3. Step 3: Cross multiply
    604,477.40x = 907,372.20 × 471,945.20
  4. Step 4: Simplify right side
    604,477.40x = 428,229,954,403.44
  5. Step 5: Solve for x
    x = 428,229,954,403.44/604,477.40
  6. Step 6: Final answer
    x = 708,430.05

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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.