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Finding the Fourth Proportional to 359,411.76, 495,966.96 and 198,267.12

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Solution

The fourth proportional to 359,411.76, 495,966.96 and 198,267.12 is: 273,596.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,411.76 : 495,966.96 = 198,267.12 : x
  2. Step 2: Convert to fraction form
    359,411.76/495,966.96 = 198,267.12/x
  3. Step 3: Cross multiply
    359,411.76x = 495,966.96 × 198,267.12
  4. Step 4: Simplify right side
    359,411.76x = 98,333,940,774.36
  5. Step 5: Solve for x
    x = 98,333,940,774.36/359,411.76
  6. Step 6: Final answer
    x = 273,596.89

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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.