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Finding the Fourth Proportional to 359,270.55, 539,260.38 and 190,790.40

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Solution

The fourth proportional to 359,270.55, 539,260.38 and 190,790.40 is: 286,373.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,270.55 : 539,260.38 = 190,790.40 : x
  2. Step 2: Convert to fraction form
    359,270.55/539,260.38 = 190,790.40/x
  3. Step 3: Cross multiply
    359,270.55x = 539,260.38 × 190,790.40
  4. Step 4: Simplify right side
    359,270.55x = 102,885,703,604.35
  5. Step 5: Solve for x
    x = 102,885,703,604.35/359,270.55
  6. Step 6: Final answer
    x = 286,373.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.