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Finding the Fourth Proportional to 524,075.40, 786,113.10 and 485,584.20

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Solution

The fourth proportional to 524,075.40, 786,113.10 and 485,584.20 is: 728,376.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,075.40 : 786,113.10 = 485,584.20 : x
  2. Step 2: Convert to fraction form
    524,075.40/786,113.10 = 485,584.20/x
  3. Step 3: Cross multiply
    524,075.40x = 786,113.10 × 485,584.20
  4. Step 4: Simplify right side
    524,075.40x = 381,724,100,773.02
  5. Step 5: Solve for x
    x = 381,724,100,773.02/524,075.40
  6. Step 6: Final answer
    x = 728,376.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.