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Finding the Fourth Proportional to 539,219.60, 808,829.40 and 273,798.80

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Solution

The fourth proportional to 539,219.60, 808,829.40 and 273,798.80 is: 410,698.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,219.60 : 808,829.40 = 273,798.80 : x
  2. Step 2: Convert to fraction form
    539,219.60/808,829.40 = 273,798.80/x
  3. Step 3: Cross multiply
    539,219.60x = 808,829.40 × 273,798.80
  4. Step 4: Simplify right side
    539,219.60x = 221,456,519,124.72
  5. Step 5: Solve for x
    x = 221,456,519,124.72/539,219.60
  6. Step 6: Final answer
    x = 410,698.20

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Similar ratio
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1.5x scale

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.