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Finding the Fourth Proportional to 466,328.40, 699,780.60 and 185,816.40

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Solution

The fourth proportional to 466,328.40, 699,780.60 and 185,816.40 is: 278,839.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,328.40 : 699,780.60 = 185,816.40 : x
  2. Step 2: Convert to fraction form
    466,328.40/699,780.60 = 185,816.40/x
  3. Step 3: Cross multiply
    466,328.40x = 699,780.60 × 185,816.40
  4. Step 4: Simplify right side
    466,328.40x = 130,030,711,881.84
  5. Step 5: Solve for x
    x = 130,030,711,881.84/466,328.40
  6. Step 6: Final answer
    x = 278,839.36

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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.