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Finding the Fourth Proportional to 525,872.40, 788,808.60 and 193,405.20

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Solution

The fourth proportional to 525,872.40, 788,808.60 and 193,405.20 is: 290,107.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,872.40 : 788,808.60 = 193,405.20 : x
  2. Step 2: Convert to fraction form
    525,872.40/788,808.60 = 193,405.20/x
  3. Step 3: Cross multiply
    525,872.40x = 788,808.60 × 193,405.20
  4. Step 4: Simplify right side
    525,872.40x = 152,559,685,044.72
  5. Step 5: Solve for x
    x = 152,559,685,044.72/525,872.40
  6. Step 6: Final answer
    x = 290,107.80

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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.