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Finding the Fourth Proportional to 316,411.49, 436,625.92 and 180,451.16

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Solution

The fourth proportional to 316,411.49, 436,625.92 and 180,451.16 is: 249,010.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,411.49 : 436,625.92 = 180,451.16 : x
  2. Step 2: Convert to fraction form
    316,411.49/436,625.92 = 180,451.16/x
  3. Step 3: Cross multiply
    316,411.49x = 436,625.92 × 180,451.16
  4. Step 4: Simplify right side
    316,411.49x = 78,789,653,750.07
  5. Step 5: Solve for x
    x = 78,789,653,750.07/316,411.49
  6. Step 6: Final answer
    x = 249,010.09

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1.5x scale

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.