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Finding the Fourth Proportional to 525,554.40, 788,331.60 and 193,087.20

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Solution

The fourth proportional to 525,554.40, 788,331.60 and 193,087.20 is: 289,630.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,554.40 : 788,331.60 = 193,087.20 : x
  2. Step 2: Convert to fraction form
    525,554.40/788,331.60 = 193,087.20/x
  3. Step 3: Cross multiply
    525,554.40x = 788,331.60 × 193,087.20
  4. Step 4: Simplify right side
    525,554.40x = 152,216,741,315.52
  5. Step 5: Solve for x
    x = 152,216,741,315.52/525,554.40
  6. Step 6: Final answer
    x = 289,630.80

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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.