Home / 354,587.20-531,929.40-117,905.20

Finding the Fourth Proportional to 354,587.20, 531,929.40 and 117,905.20

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Solution

The fourth proportional to 354,587.20, 531,929.40 and 117,905.20 is: 176,873.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,587.20 : 531,929.40 = 117,905.20 : x
  2. Step 2: Convert to fraction form
    354,587.20/531,929.40 = 117,905.20/x
  3. Step 3: Cross multiply
    354,587.20x = 531,929.40 × 117,905.20
  4. Step 4: Simplify right side
    354,587.20x = 62,717,242,292.88
  5. Step 5: Solve for x
    x = 62,717,242,292.88/354,587.20
  6. Step 6: Final answer
    x = 176,873.96

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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.