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Finding the Fourth Proportional to 485,054.40, 727,581.60 and 463,281.60

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Solution

The fourth proportional to 485,054.40, 727,581.60 and 463,281.60 is: 694,922.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,054.40 : 727,581.60 = 463,281.60 : x
  2. Step 2: Convert to fraction form
    485,054.40/727,581.60 = 463,281.60/x
  3. Step 3: Cross multiply
    485,054.40x = 727,581.60 × 463,281.60
  4. Step 4: Simplify right side
    485,054.40x = 337,075,167,778.56
  5. Step 5: Solve for x
    x = 337,075,167,778.56/485,054.40
  6. Step 6: Final answer
    x = 694,922.40

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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.