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Finding the Fourth Proportional to 505,630.40, 758,448.56 and 168,670.24

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Solution

The fourth proportional to 505,630.40, 758,448.56 and 168,670.24 is: 253,006.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,630.40 : 758,448.56 = 168,670.24 : x
  2. Step 2: Convert to fraction form
    505,630.40/758,448.56 = 168,670.24/x
  3. Step 3: Cross multiply
    505,630.40x = 758,448.56 × 168,670.24
  4. Step 4: Simplify right side
    505,630.40x = 127,927,700,642.85
  5. Step 5: Solve for x
    x = 127,927,700,642.85/505,630.40
  6. Step 6: Final answer
    x = 253,006.35

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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.