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Finding the Fourth Proportional to 267,315.60, 401,075.80 and 263,117.20

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Solution

The fourth proportional to 267,315.60, 401,075.80 and 263,117.20 is: 394,776.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,315.60 : 401,075.80 = 263,117.20 : x
  2. Step 2: Convert to fraction form
    267,315.60/401,075.80 = 263,117.20/x
  3. Step 3: Cross multiply
    267,315.60x = 401,075.80 × 263,117.20
  4. Step 4: Simplify right side
    267,315.60x = 105,529,941,483.76
  5. Step 5: Solve for x
    x = 105,529,941,483.76/267,315.60
  6. Step 6: Final answer
    x = 394,776.59

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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.