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Finding the Fourth Proportional to 341,381.49, 471,106.15 and 190,478.49

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Solution

The fourth proportional to 341,381.49, 471,106.15 and 190,478.49 is: 262,860.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,381.49 : 471,106.15 = 190,478.49 : x
  2. Step 2: Convert to fraction form
    341,381.49/471,106.15 = 190,478.49/x
  3. Step 3: Cross multiply
    341,381.49x = 471,106.15 × 190,478.49
  4. Step 4: Simplify right side
    341,381.49x = 89,735,588,081.71
  5. Step 5: Solve for x
    x = 89,735,588,081.71/341,381.49
  6. Step 6: Final answer
    x = 262,860.15

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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.