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Finding the Fourth Proportional to 316,802.58, 437,187.54 and 189,508.26

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Solution

The fourth proportional to 316,802.58, 437,187.54 and 189,508.26 is: 261,521.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,802.58 : 437,187.54 = 189,508.26 : x
  2. Step 2: Convert to fraction form
    316,802.58/437,187.54 = 189,508.26/x
  3. Step 3: Cross multiply
    316,802.58x = 437,187.54 × 189,508.26
  4. Step 4: Simplify right side
    316,802.58x = 82,850,649,999.08
  5. Step 5: Solve for x
    x = 82,850,649,999.08/316,802.58
  6. Step 6: Final answer
    x = 261,521.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.