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Finding the Fourth Proportional to 359,221.25, 495,714.69 and 198,076.25

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Solution

The fourth proportional to 359,221.25, 495,714.69 and 198,076.25 is: 273,339.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,221.25 : 495,714.69 = 198,076.25 : x
  2. Step 2: Convert to fraction form
    359,221.25/495,714.69 = 198,076.25/x
  3. Step 3: Cross multiply
    359,221.25x = 495,714.69 × 198,076.25
  4. Step 4: Simplify right side
    359,221.25x = 98,189,304,386.54
  5. Step 5: Solve for x
    x = 98,189,304,386.54/359,221.25
  6. Step 6: Final answer
    x = 273,339.36

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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.