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Finding the Fourth Proportional to 359,220.48, 495,713.66 and 198,075.50

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Solution

The fourth proportional to 359,220.48, 495,713.66 and 198,075.50 is: 273,338.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,220.48 : 495,713.66 = 198,075.50 : x
  2. Step 2: Convert to fraction form
    359,220.48/495,713.66 = 198,075.50/x
  3. Step 3: Cross multiply
    359,220.48x = 495,713.66 × 198,075.50
  4. Step 4: Simplify right side
    359,220.48x = 98,188,727,592.38
  5. Step 5: Solve for x
    x = 98,188,727,592.38/359,220.48
  6. Step 6: Final answer
    x = 273,338.33

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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.