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Finding the Fourth Proportional to 546,661.80, 819,636.30 and 490,674.60

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Solution

The fourth proportional to 546,661.80, 819,636.30 and 490,674.60 is: 735,692.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,661.80 : 819,636.30 = 490,674.60 : x
  2. Step 2: Convert to fraction form
    546,661.80/819,636.30 = 490,674.60/x
  3. Step 3: Cross multiply
    546,661.80x = 819,636.30 × 490,674.60
  4. Step 4: Simplify right side
    546,661.80x = 402,174,713,647.98
  5. Step 5: Solve for x
    x = 402,174,713,647.98/546,661.80
  6. Step 6: Final answer
    x = 735,692.00

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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.