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Finding the Fourth Proportional to 359,220.51, 495,714.81 and 198,072.84

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Solution

The fourth proportional to 359,220.51, 495,714.81 and 198,072.84 is: 273,335.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,220.51 : 495,714.81 = 198,072.84 : x
  2. Step 2: Convert to fraction form
    359,220.51/495,714.81 = 198,072.84/x
  3. Step 3: Cross multiply
    359,220.51x = 495,714.81 × 198,072.84
  4. Step 4: Simplify right side
    359,220.51x = 98,187,640,246.76
  5. Step 5: Solve for x
    x = 98,187,640,246.76/359,220.51
  6. Step 6: Final answer
    x = 273,335.28

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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.