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Finding the Fourth Proportional to 359,453.40, 496,045.74 and 198,308.84

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Solution

The fourth proportional to 359,453.40, 496,045.74 and 198,308.84 is: 273,666.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,453.40 : 496,045.74 = 198,308.84 : x
  2. Step 2: Convert to fraction form
    359,453.40/496,045.74 = 198,308.84/x
  3. Step 3: Cross multiply
    359,453.40x = 496,045.74 × 198,308.84
  4. Step 4: Simplify right side
    359,453.40x = 98,370,252,806.11
  5. Step 5: Solve for x
    x = 98,370,252,806.11/359,453.40
  6. Step 6: Final answer
    x = 273,666.22

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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.