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Finding the Fourth Proportional to 358,988.15, 494,954.55 and 229,714.58

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Solution

The fourth proportional to 358,988.15, 494,954.55 and 229,714.58 is: 316,718.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,988.15 : 494,954.55 = 229,714.58 : x
  2. Step 2: Convert to fraction form
    358,988.15/494,954.55 = 229,714.58/x
  3. Step 3: Cross multiply
    358,988.15x = 494,954.55 × 229,714.58
  4. Step 4: Simplify right side
    358,988.15x = 113,698,277,809.73
  5. Step 5: Solve for x
    x = 113,698,277,809.73/358,988.15
  6. Step 6: Final answer
    x = 316,718.75

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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.