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Finding the Fourth Proportional to 340,528.95, 469,986.01 and 259,803.94

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Solution

The fourth proportional to 340,528.95, 469,986.01 and 259,803.94 is: 358,572.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,528.95 : 469,986.01 = 259,803.94 : x
  2. Step 2: Convert to fraction form
    340,528.95/469,986.01 = 259,803.94/x
  3. Step 3: Cross multiply
    340,528.95x = 469,986.01 × 259,803.94
  4. Step 4: Simplify right side
    340,528.95x = 122,104,217,142.88
  5. Step 5: Solve for x
    x = 122,104,217,142.88/340,528.95
  6. Step 6: Final answer
    x = 358,572.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.