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Finding the Fourth Proportional to 334,219.80, 501,329.70 and 259,570.20

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Solution

The fourth proportional to 334,219.80, 501,329.70 and 259,570.20 is: 389,355.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,219.80 : 501,329.70 = 259,570.20 : x
  2. Step 2: Convert to fraction form
    334,219.80/501,329.70 = 259,570.20/x
  3. Step 3: Cross multiply
    334,219.80x = 501,329.70 × 259,570.20
  4. Step 4: Simplify right side
    334,219.80x = 130,130,250,494.94
  5. Step 5: Solve for x
    x = 130,130,250,494.94/334,219.80
  6. Step 6: Final answer
    x = 389,355.30

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1.5x scale

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.