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Finding the Fourth Proportional to 359,269.55, 539,258.88 and 190,789.40

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Solution

The fourth proportional to 359,269.55, 539,258.88 and 190,789.40 is: 286,372.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,269.55 : 539,258.88 = 190,789.40 : x
  2. Step 2: Convert to fraction form
    359,269.55/539,258.88 = 190,789.40/x
  3. Step 3: Cross multiply
    359,269.55x = 539,258.88 × 190,789.40
  4. Step 4: Simplify right side
    359,269.55x = 102,884,875,463.58
  5. Step 5: Solve for x
    x = 102,884,875,463.58/359,269.55
  6. Step 6: Final answer
    x = 286,372.38

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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.