Home / 525,113.40-787,670.10-192,646.20

Finding the Fourth Proportional to 525,113.40, 787,670.10 and 192,646.20

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Solution

The fourth proportional to 525,113.40, 787,670.10 and 192,646.20 is: 288,969.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,113.40 : 787,670.10 = 192,646.20 : x
  2. Step 2: Convert to fraction form
    525,113.40/787,670.10 = 192,646.20/x
  3. Step 3: Cross multiply
    525,113.40x = 787,670.10 × 192,646.20
  4. Step 4: Simplify right side
    525,113.40x = 151,741,651,618.62
  5. Step 5: Solve for x
    x = 151,741,651,618.62/525,113.40
  6. Step 6: Final answer
    x = 288,969.30

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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.