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Finding the Fourth Proportional to 525,769.20, 788,653.80 and 365,410.80

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Solution

The fourth proportional to 525,769.20, 788,653.80 and 365,410.80 is: 548,116.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,769.20 : 788,653.80 = 365,410.80 : x
  2. Step 2: Convert to fraction form
    525,769.20/788,653.80 = 365,410.80/x
  3. Step 3: Cross multiply
    525,769.20x = 788,653.80 × 365,410.80
  4. Step 4: Simplify right side
    525,769.20x = 288,182,615,981.04
  5. Step 5: Solve for x
    x = 288,182,615,981.04/525,769.20
  6. Step 6: Final answer
    x = 548,116.20

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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.